Problem

Kirti has developed formulas to help her determine the size of her rectangular flower garden each spring. If she wants to plant n varieties of flowers, she determines the length, L, and the width, W, of her garden, in feet, according to the following formulas:
L, left parenthesis, n, right parenthesis, equals, n, plus, 2, spaceand space, W, left parenthesis, n, right parenthesis, equals, 0, point, 5, n, plus, 1
Let A be the area of Kirti's flower garden if she plants n types of flowers.
Write a formula for A, left parenthesis, n, right parenthesis in terms of L, left parenthesis, n, right parenthesis and W, left parenthesis, n, right parenthesis.
space, A, left parenthesis, n, right parenthesis, equals
Write a formula for A, left parenthesis, n, right parenthesis in terms of n.
space, A, left parenthesis, n, right parenthesis, equals