If the Federal Reserve sells $30,000 in Treasury bonds to a bank at 4%
interest, what is the immediate effect on the money supply?

A. It is decreased by $31,200.
B. It is increased by $31,200.
c. It is decreased by $30,000.
D. It is increased by $30,000.

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:

i believe the answer is letter c) 8

step-by-step explanation:

what is the graph

step-by-step explanation:

step-by-step explanation:

circumference divided by 3.141592654 then timesthe radius twice