Too few arguments in function to call [C program] - c

Question

So, I have an assignment due tomorrow night for my online C programming class, and I am having some problems with my coding at the moment. I have brought the code to my teacher, but she doesn't seem to understand that she is being paid to teach me, not tell me that something is wrong with my code. I would appreciate if someone could take a look at the code and help me fix it. Code is located below. The location where I get my error is in main when calling the printtripSummary.
#include <stdio.h>
void welcomeMessage();
void askuserForInput();
void printtripSummary(float avgMiles, float minCost, float maxCost, float travelMiles);
int main()
{
/* Call the functions */
welcomeMessage();
askuserForInput();
printtripSummary();
printf("\nThank you, please drive safely and have a nice trip!\n");
return 0;
}
void welcomeMessage()
{
printf("Welcome to the Trip Planner!\n");
printf("So you are ready to take a trip? Let me help you plan for\n");
printf("your fuels costs and required stops to fill up your tank.\n");
printf("============================================================\n");
printf("Please provide answers to the prompts below and I will\n");
printf("display a summary for you when I have computed the results.\n");
printf("============================================================\n");
}
void askuserForInput()
{
float avgMiles, minCost, maxCost, travelMiles;
do{
printf("Please input your car's average miles per gallon (enter 0 to quit)>> ");
scanf_s("%f", &avgMiles);
if (avgMiles == 0)
break;
printf("Please tell me the range of fuel costs you expect to pay (per gallon>>)\n");
printf("The lowest per gallon cost of fuel is>> ");
scanf_s("%f", &minCost);
printf("The highest per gallon cost of fuel is>> ");
scanf_s("%f", &maxCost);
printf("Please tell me how many miles you plan to travel>> ");
scanf_s("%f", &travelMiles);
printtripSummary(avgMiles, minCost, maxCost, travelMiles);
} while (avgMiles != 0);
}
void printtripSummary(float avgMiles, float minCost, float maxCost, float travelMiles)
{
float avgGal, mingasPrice, maxgasPrice;
do{
avgGal = travelMiles / avgMiles;
mingasPrice = avgGal * minCost;
maxgasPrice = avgGal * maxCost;
printf("You will be required to purchase %.2f gallons of fuel.\n", avgGal);
printf("The price will range between %2f and $%.2f.\n", mingasPrice, maxgasPrice);
} while (avgMiles != 0);
}

Answer 1

Comment out the function call in main like this (Line 13):
//printtripSummary();
Because you call the function already in askuserForInput(); and this function get called in main
OR if you want to call the function also in main your have to pass the required arguments which are:
(float avgMiles, float minCost, float maxCost, float travelMiles)
Also you have a endless loop in the function printtripSummary(); Because you have a do...while loop which checks if avgMiles != 0, but since your not changing the value of avgMiles in this loop it's endless!

Answer 2

On line 13 you're calling the printtripSummary function without passing any arguments to it. You have to provide the 4 arguments the function definition specifies (avgMiles, minCost, maxCost, travelMiles).