C programing---Write the functions that are called in the main () function to produce these outputs. Enter the monthly sales: 14550.00 Enter the amount of advanced pay, or enter 0 if no advanced pay was given Advanced pay: 100 Requirements for the function - determine_comm_rate () Sales less than 10000.00 rate:.10 Sales from 10000.00 to 14999.99 rate:.12 Sales from 15000.00 to 17999.99 rate:.14 Sales from 18000.00 to 21999.99 rate:.16 Sales greater than 21999.99 rate:.18

Following are the program in the C programming Language:

#include / /header file

//set function for sales

int get_sales () {

int sale;

//print message

printf ("Enters monthly sale: ");

scanf ("%d",&sale);

return sale;

}

//set function for the advance payment

int get_advanced_pay () {

int advance;

//print message

printf ("Enter the amount of advanced pay or enter 0 if no advanced pay was given: ");

scanf ("%d",&advance);

return advance;

}

//set fucntion of comman rates

float determine_comm_rate (int sale) {

if (sale<10000)

return 0.1;

if (sale<15000)

return 0.12;

if (sale<18000)

return 0.14;

if (sale<22000)

return 0.16;

else

return 0.18;

}

//set the main function

int main () {

int sale, advanced;

float comm_rate, pay;

sale=get_sales ();

advanced=get_advanced_pay ();

comm_rate=determine_comm_rate (sale);

pay=sale*comm_rate-advanced;

printf ("The pay is %f/n", pay);

if (pay<0)

//if the pay is less than 0

printf ("The salesperson must reimburse the company");

}

Output:

Enters monthly sale: 45000

Enter the amount of advanced pay or enter 0 if no advanced paywas given: 1000

The pay is 7100.000488

Explanation:

Here, we set the integer type function "get_sales () " in which we get the monthly sale of the person and then return sales.

Then, we set the function "get_advanced_pay () " in which we get the advance payment of the person and then return it. Then, we set the function "determine_comm_rate () " in which we compare their sales and return it.

Finally, we set the main method in which we call both the functions and print the following output.