#include <stdio.h>
double calculateSum(double age[]) {
double sum = 0.0;
for (int i = 0; i < 7; ++i) {
sum += age;
}
return sum;//wants return sum from this function
}
int main() {
double result, age[7];
printf("Enter seven numbers: ");
for(int i=0;i<7;++i)
{...