Leon has a container filled with 450 grams of tea leaves. Each morning, he uses 3 grams to make a cup of tea. Which expression can be used to represent the amount of tea leaves remaining after x days? A. 450 – 3x
B. 450 + 3x
C. 3 + 450x
D.3 – 450x

(A) 450-3x

Step-by-step explanation:

Cuz I know the answer.

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: