Answer:
part 1: = 0.25
(I made the ? into x's)
(Im working on part 2)
Explanation:
Let's solve your equation step-by-step.
(9^4)x=91
6561x=9
Solve Exponent.
6561x=9
log(6561x)=log(9)(Take log of both sides)
x*(log(6561))=log(9)
x=
log(9)
log(6561)
x=0.25
Answer:
x=0.2