Factor the expression below. x2 + 18x+ 81
A. (x - 9)(x-9)
B. (x + 9)(x + 9)
C. (x+3)(x + 27)
D. (x - 3)(x - 27)

The art class is planning to paint a mural on an outside wall. this figure is a scale drawing of the wall. width: 11 in length: 28 in unit rate: 1.5 ft per in. write the ratio of the area of the drawing to the area of the actual mural. write your answer as a unit rate. show that this unit rate is equal to the square of the unit rate 1.5 ft per in

Which expressions equal 9 when x=4 and y=1/3 a. x2+6y b. 2x + 3y c. y2-21x d. 5 (x/2) -3y e. 3x-9y

If 3 3/4 lb. of candy costs 20.25 how much would 1lb. of candy cost