this is for C++

Workbench Exercise 10533 X WORK AREA mputers nteractivi Write an expression that computes the average of the values 12 and 40 ons xl 3 of3:2019-03-09 11:42 22-w . SUBMIT and Oran nd Comb rs and st rary Func Hand T ving AC 4:09 PM 3/9/2019 Exercise 10514 WORK AREA ction to Computers ction to C++ ssions and Interadiv ject cal Expressions Write a complete program that . declares an integer variable . reads a value from the keyboard into that variable, and . writes to standard output the square of the variable's value. Besides the number, nothing else should be written to standard output x9 of 9: 2019-03-09 12:02:27 Mtx: Apples and Oran and Underflow ng ssignment and Comb g Output ith Characters and st hematical Library Fund n Debugging: Hand Tr n Problem Solving: AC 4:10 PM 3/9/2019 arch