please help with this C++ assignment. thank you

In-class programming assignment (7y Write a Cfunction which gets two arguments: 1) an array. It shall perform two tasks It computes and returns sum of the elements of the array 2) It also multiplies each clement of the array by 2 Test your function in a program by passing the following atray to the function 12.4.6.8. 101 Output the array after it is passed through the function