Consider a simple economy that produces only pens. The following table contains information on the economy's money supply, velocity of money, price level, and output. For example, in 2017, the money supply was $360, the price of a pen was $9.00, and the economy produced 800 pens.

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answer:   x (x+6)^2, choice b

discussion:

factor x out of the equation:

x^3 + 12x^2 + 36x = x (x^2 + 12x + 36).

note that 6+6 = 12 and 6*6 = 36 so the above factors into:

x (x+6)^2

which is choice b

you,

mrb

146

step-by-step explanation:

its   c, f, a

step-by-step explanation: