please. help me. with these c++ projects

Lab on Passing Arrays to a function 1. Write a program that passes an array called grades to a function named calcTotal. grades of 10 students. Once inside the function, the function should calculate the sum of all the grades and return the total to the main program Write a program to find the largest and smallest inside the array. The largest and the smallest will be found inside a function called findLarge Write a program that passes an array, the size of the array and a number to be searched into a function called search. If the number is found, the function returns the index of the element. If it is not found, then it returns a -1 to the main program The array contains the 2