Please please please help :)

$ 800

Step-by-step explanation:

Parking slot is in the shape of parallelogram.

base = 3 m

Height = 6 2/3 m

Area = base * height

Cost of paving the parking spot = 20 * 40

                                                    = $ 800

40 is the final : )

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: