Exercise 7.x1: Write a procedure that takes two arguments,

`a`and`n`, and generates a list of`n`consecutive even integers, starting with`a`. You may assume that`a`is an even integer and that`n`is a nonnegative integer.Do exercise 7.8(a) on page 174.

Do exercise 7.9(a) on pages 174-175.

Do exercise 7.41 on page 205.

Do exercise 7.42 on page 205.