array program help.

[chumpp]

i need some direction on how to do this. i need to take the values in my two arrays and find the product of them and store that into my third array. This is what i have so far.

#include <stdio.h>
#include <conio.h>
int main()
{
    void extend(float [9], float[9] , float[9]);
    float price[9];
    float quantity[9];
    float amount[9];
    
    int i;
    
    
    printf("this program will accept 10 numbers and the quantity\n");
    
    for(i = 0; i < 9; i++)
          {
          printf("Please enter the price:\n");
          scanf("%f", &price[i]);
          printf("Please enter the quantity:\n");
          scanf("%f", &quantity[i]);
          }
    extend(price, quantity, amount);
    
    getch();
    return 0;




}
void extend(float price[], float quantity[], float amount[])
{
     int j;
     int h;
     
     for(j = 0; j < 9; j++)
     {
           amount[j] = price[j] * quantity[j];
     }
           
     for(h = 0; h < 9;h++)
     {
           printf("%.2f\n", amount[h]);
     }
}

for some reason i keep getting errors.