Too Few Arguments Error

#include <cstdio>                                                //Header Files
#include <iostream>
#include <cmath>
using namespace std;
int display_function ();
void big_switch(int, int);
int random;
static float grandtotal;
void quit_pattern();
int init_function();
int display_function();
int grand_total();
void calculate (int, int);
void calculate (int); 
int super_loop(int passengers, int age);
double super_calculate(char passgend, int passage, int age);

int main(){
int age, choose;   //Initializing variables
bool notValid; 
init_function();
grandtotal=init_function();
while(true){
            choose=display_function();
                 do{                                                                //Validation for age
                   notValid=false;
                   printf ("\nHow old are you?");
                   cin >> age;
                 if (age<1 || age>115){
                   cout << "Invalid entry.\n"; 
                   notValid=true;
                   }
                   }while (notValid);
             big_switch(choose, age);
             }
}

void big_switch(int choose, int age){
switch(choose){
                    case 1:
                          int passengers;
                          cout << "\nHow many passengers do you have?";
                          cin >> passengers;
                          calculate(passengers, age);
                         break;
                    case 2:
                         calculate(age);
                        
                    break;
                    case 3:
                        
                         bool notValid;
                         do{
                            notValid=false;                                            //Validating for >4 passengers
                            cout << "\nHow many passengers do you have?";
                            cin >> passengers;
                            if (passengers >=4){
                               cout << "Invalid entry."; 
                               notValid=true;
                               }
                         }while (notValid);
                          super_loop(passengers, age);  
                    break;         
                    case 4:
                            quit_pattern();
                    break;
                    default:
                           cout << "Invalid entry\n\n";
                    }       
}


 void calculate (int passengers, int age){
                          int a;
                          double fee;
                          if (passengers>3){           
                             fee=passengers*age;
                             grandtotal=grandtotal+fee;                             //Calculating price for #1                               printf ("%30s","The price for you is $");
                             printf ("%-5.2lf", fee);
                             cout << "\n\n";
                             printf ("%30s","The grand total is $");
                             printf ("%-5.2lf\n", grandtotal);
                          }
                          else     
                               for(a=0;a<passengers;a++){                            //Display as many starts as the number of passengers
                               cout << "*\n";
                               grandtotal=grandtotal+fee;
                               printf ("%30s","The price for you is $");
                               printf ("%-5.2lf", fee);
                               cout << "\n\n";
                               printf ("%30s","The grand total is $");
                               printf ("%-5.2lf""\n", grandtotal);
                          }

}

void calculate(int age){
                         double fee;                      //Calculating price for #2
                         if  (age>=65){
                             fee=(age-65)*.5;
                             printf ("%30s","The price for you is $");
                             printf ("%-5.2lf", fee);
                             cout << "\n\n";
                             }
                         else if(age% 2 == 0)
                              cout << "\nNo Charge\n\n\n";
                         else{
                              fee=age;
                              grandtotal=grandtotal+fee;
                              printf ("%30s","The price for you is $");
                              printf ("%-5.2lf", fee);
                              printf ("%30s","The grand total is $");
                              printf ("%-5.2lf\n", grandtotal);
                              cout << "\n\n";
                              }
                               grandtotal=grandtotal+fee; 
}


 int super_loop(int passengers, int age){
   int a, passage;
   double fee, grandtotal;
   char passgend;
   bool notValid;
   for (a=1;a<passengers;a++){ 
       do{                          //Loop for passengers' ages and genders                    
       notValid=false;
       cout << "\nEnter gender of passenger number ";
       cout << a;
       cin >> passgend;
       if (passgend!='m' && passgend!='f'){
          cout << "Invalid entry.\n"; 
          notValid=true;
          }
       }while (notValid);
       cout << "\nEnter age of passenger number ";
       cout << a <<":";
       cin >> passage;
   }
  fee = super_calculate();
  grandtotal=grand_total();
  grandtotal=grandtotal+fee;
  printf ("%30s","The price for you is $");
  printf ("%-5.2lf", fee);
  printf ("%30s","The grand total is $");
  printf ("%-5.2lf\n", grandtotal);
  cout << "\n\n";
   
}

double super_calculate(char passgend,  int passage, int age){
    double fee;
    if (passgend=='f'){                                           //Calculating for f passenger
      fee=passage*1.5;
      return(fee);
   }
   else                                                      //Calculating for f passenger
      fee=2*age;
   return(fee);
}

int inline init_function(){
   int rand_number = rand()%100+10; 
   return(rand_number);
}

int grand_total(int, int){
     int fee, rand_number;
     cout << rand_number;
     rand_number=init_function();
     double grandtotal=fee+rand_number;
     cout << "The grand total is :" << grandtotal;
     }

int display_function (){
    int selection;
    cout << "Welcome to the Fair Price Car Wash\n\n";
    cout << "1)  Regular Car Wash\n"; 
    cout << "2)  Super Car Wash\n"; 
    cout << "3)  SuperDooper Car Wash\n"; 
    cout << "4)  Quit\n\n\n";
    cout << "Select one of the options:";
    cin >> selection;
    return  (selection);
}

void quit_pattern(){
int row, space, asterisk;
    for(row=1; row<5; row++)
              {
              for(space=0; space>4+row; space++)
                 printf (" ");
              for(asterisk=1; asterisk<=2*row; asterisk++)              //Displaying stars
                 printf("*");
              cout << endl;
              }
}