assistance in function

[patron]

i am supposed to build a system which will produce output axactly d same as below:

car hours charges
1 1.5 2.00
2 4.0 2.50
3 24.0 10.00
TOTAL 29.5 14.50

user have to enter the value of hour and the counting is as follows:
within 3 hours, parkers are charged $2.00;
exceed 3 hours, parkers are charged $0.50 per hour and part thereof in excess of 3 hours;
maximum is 24 hours and are charged $10.00;

i wonder how to print and save the value of hour entered by user as i can't showed it as below:

Enter the hour: __

please help..

my code is as follow:

#include<stdio.h>
float enter_hours(float w);
float calculateCharges(float x,float y);

int main ()

{
	float r,p,q;
	printf("Car\tHours\tCharges\n");

 for (int count=0;count<2;count++);
 {
	 printf("\n&#37;d\t%.1f\t%.2f",count,enter_hours(r),calculateCharges(p,q));
 }

return (0);
 }

float enter_hours(float w)
{
 float x;
 printf(" ");
 scanf("%f",&x);
 printf("%.1f",x);
}

float calculateCharges(float n,float x)
{
  if (x<=3){
  return 2.00;
  }

  if (x>3 && x<24){
  return 2.00+0.50*n;
  }

  if (x==24){
  return 10.00;
  }

}

[patron]

are there any wrong wif my code...?
I no it isn't perfect..

please anyone..
help me to correct it as i'm really blurred with the concept of function...

thanks...