9000 for 5 years at 4.5% compounded monthly

the given 6 = w/p is equivalent to 6p = w, where w is the total area of the walls and p is the area covered by a single can of paint.

knowing that 6 cans of paint will be needed, 6p = w becomes 6(6) = w = 36.   this tells us that the total area to be painted is 36 square units.

the answer is d d.

surface area: 4,644,025 pi

volume: 1,667,978,979 pi