A RECTANGLE WITH A LENGTH OF X + 5 HAS A PERIMETER OF 4X + 14.
a. Write the expression for the width of the rectangle in terms of x.
b. Suppose the perimeter of the rectangle is 42 inches. What are length and width of the rectangle?
c. Write the expression for the area of the rectangle in terms of x.
d. Find the area of the rectangle when x = 7 in.