I know that x=9 not sure the rest but you could ask a tutor
Answer:
multiply 8 x 4=22
Step-by-step explanation:
The E3 is the same as writing 10^3.
The answer would be 7.9 x 10^3
<h3>
Answer: Choice D) </h3>
Work Shown:

We must require that
and
to avoid having 0 in the denominator. This is why choice D is the answer.