You work for a carpet company. You sell carpets at these prices: 100 square feet for $67,200 square feet for $130,400 square feet for $240, and 800 square feet for $504. What is the approximate percentage difference of the best and worst carpet deals according to their unit costs?

A. 9%

B. 11%

C. 13%

D. 17%

since your problem is x^4 = 81, what you have to undeo is the "to the fourth power" part.

the inverse (opposite operation) of "to the fourth power" is "to the fourth root".

  (x^4) ^ ¼   = 81 ^ ¼  

  81 = 3^4     so (3 ^ 4) ^ ¼   =   3 ^ 1   = 3

by hand: (3 ^ 4) ^ ¼   =   3 ^ (4 x ¼) = 3 ^ 1   = 3   (when you take a power to a power, multiply the exponents.)

or, do it by calculator. one way of finding the fourth root is to use ^ (1/4)

step-by-step explanation:

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step-by-step explanation:

what are the statements? and what do you mean by "216 2 1 6"?

table 3 represents a direct variation function. : )