I am having problems writing a function that calculates the average of 5 numbers inputted by user. This is all very confusing to me and has been eversince they were introduced. I am not sure which parameters to use i think it should look like

int funcAverage (int numbers, int sum)

really do not know how to write the definition and this is where I need help. I am not sure which variables go where. I dont want you guys to do the work for me, I just need soeone to explain how this all goes together. I am at a point of complete frusteration and am ready to quit.