20. firewood is often sold by the cord. a cord of wood is a bundle measuring 4 feet by 4 feet by 8 feet. what's the volume of a cord of wood in cubic feet? a. 3,456 cu. ft. b. 4.74 cu. ft. c. 64 cu. ft. d. 128 cu. ft.

A cord is a rectangular prism. The volume formula for a rectangular prism is A = l*w*h. So, in this case, A = 4*4*8 = 128 ft^3. So your answer is D.

108

If you need an equation, it would be y=2x+8, y would be how long it grew, x being weeks.if you need how long he was asleep, it would be 4 weeks if he started with no beard, the equation would be x=8÷2if he did have a beard before hand, the equation would be 2w+x=8