Write the following as expressions.
a. one-third the sum of 6 and 3.
b. four times the quotient of 3 and 4.
c. one-fourth the difference between 2/3 and 1/2.

a) 3

b) 3

c) 1/24

Step-by-step explanation:

See it in the pic

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: