Kindly write the following programs in DEV CH: A + 2x + vy 1. Write a program to perform the mathematical operation M sm 2 2. Write a program to show the average temperature of one week by using for loop and array. 3. Write a program to add 3 variables using structure. 4. Make a class with information (Class Name Myrecord; Attributes ID, Name, Semester, City, Region: Member Functions Constructor function, Displayrecord(), initialize the constructer and call member functions from the main()