/*Mary Kwong*/
#include <stdio.h> //printf, scanf functions
#include <math.h> //math functions and operations

double celsius_at_depth(double kilometers);
double fahrenheit(double kilometers);

int main(void)
{
    double kilometers
    printf("Enter depth in kilometers=> ");
    scanf("%lf", &kilometers);
    printf("The temperature is %f degrees C or %f degrees F.\n",


double celsius_at_depth(double kilometers)
{
    return ((10 * kilometers) + 20);
}

double fahrenheit(double kilometers)
{
    return((((10 * kilometers) + 20) * (9 / 5)) + 32);
}