A letter or symbol is used to represent an unknown quantity
Answer:
yah just give me the question???
Answer: Choice A. 1/64
Work Shown:
f(x) = 4^x
f(-3) = 4^(-3)
f(-3) = 1/(4^3) ... see note below
f(-3) = 1/64
Note: I'm using the rule that a^(-b) = 1/(a^b)
It is a prime number. 89=1×89 hope it helps
