4. The area of a rectangle is 64x square feet. Which of the following
represents the length of the rectangle if its width is 2x? feet?
a 16x? ft
c. 32x? It
b. 16x' it
d. 128x* nt
5. A girl needs three pieces of wood whose lengths are5x? - 2x + 1, 3x? + 8x
4, and 4x² + 6x - 6. If she is going to buy a single piece of wood(W), how
long should the wood be?
a. W = 12x2 + 12x - 9 units
c. W = 12x + 14x + 9 units
b. W = 12x2 - 12x + 9 units
d. W =12x? + 14x - 9 units​