What is the square root of 243 reduced?

9is√3

Step-by-step explanation:

I think I don't really know but that's my answer

A) At x-intercepts, profit is zero. At maximum, optimal price is obtained

increasing: [0,4) -> profit increase as price of erasers increase

decreasing (4,8] -> profit decrease as price of erasers increase

B) average rate of change = [f(4) - f(1)] / (4 - 1) = (270 - 120)/3 = 50

this means that, in average, a profit of 50 is made for every unitary increase in the price of erasers (at that range of prices)

C) Only those prices that makes profit positive are taken into account. And that is why the domain is [0,8]