Please help with these short problems and I will rate!

ind the errors Programming: Chapter 2 This function that should calculate and return the average of three integers. Fix the errors in the function definition Convert the following pseudocode to C++ code. Be sure to define the appropriate variables Store 172.5 in the force variable Store 27.5 in the area variable Divide area by force and store the result in the pressure variable Display the contents of the pressure variable double average(int valuel, int value2) average - valuel + value2 + value3 3; Programming: Chapter 3 Programming: Chapter 4 Write a a program that asks the user to enter a golfer's score for three games of golf, and then displays the average of the three scores Using the following chart, write a nested if/else statement that assigns .10,.15, or .20 to commission, depending on the value in sales. Try not to use any redundant boolean expressions in your if/else statement Sales Under $10,000 $10,000 to $15,000 Over $15,000 Commission Rate 10% 15% 20%