I'm trying to write a program for class which calls 3 functions in main which is get input, do calculations, and print output. I also need to be using pointers which I have no understanding of how to use.

so far my attempt is just giving me headaches. Can anyone steer me in the right direction?

Code:#include <stdio.h> #include <math.h> #define INCHES_FT 12 #define CENT_INCH 2.54 #define CENT_METER 100 #define LB_KG 2.2 void getInput(); void doCalculations(int feet, double inches, double pounds, int age); double printOutput(double bmi, double bmr); double convertToInch(int feet, double inches); double convertToCent(double inInches); double convertToMeter(double inCent); double convertToKG(double pounds); double calculateBMI(double inKG, double inMeter); double calculateBMR(double inKG, double inCent, int age); int main(void) { getInput(); doCalculations(&feet, &inches, £s, &age,); printOutput(double bmi, double bmr); return 0; } void getInput() { int feet; double inches; double pounds; int age; printf("Enter height in feet & inches: "); scanf("%d %lf", &feet, &inches); printf("Enter weight in pounds: "); scanf("%lf", £s); printf("Enter age in years (whole # only): "); scanf("%d\n\n", &age); } void doCalculations(int *feet, double *inches, double *pounds, int *age) { double inInches; double inCent; double inMeter; double inKG; double bmi; double bmr; inInches = convertToInch(*feet, *inches); inCent = convertToCent(inInches); inMeter = convertToMeter(inCent); inKG = convertToKG(*pounds); bmi = calculateBMI(inKG, inMeter); bmr = calculateBMR(inKG, inCent, *age); } double convertToInch(int feet, double inches) { return (feet*INCHES_FT + inches); } double convertToCent(double inInches) { return (inInches*CENT_INCH); } double convertToMeter(double inCent) { return (inCent/CENT_METER); } double convertToKG(double pounds) { return (pounds/LB_KG); } double calculateBMI(double inKG, double inMeter) { return inKG/pow(inMeter, 2); } double calculateBMR(double inKG, double inCent, int age) { return 66 + (13.75 * inKG) + (5 * inCent) – (6.8 * age); } double printOutput(double bmi, double bmr) { printf("The BMI = %.3lg", bmi); printf("The BMR (Male) = %.3lg", bmr); return 0; }