Unless I misunderstood the question or equation, I don't believe any of those apply. A better, more user-friendly formatting, might prove me wrong.
Answer:

Step-by-step explanation:
+ or x you plus the indices
- or divide you minus the indices
so 3^8 x 3^4 would be 3^12
and 3^2 x 3^8 would be 3 ^10
Answer:
no
Step-by-step explanation:
bc the x intercept is repeating when 100 is going to two numbers.A WAY easier (and faster), way to know if it is a function is to see if there are two of the same x-intercept (which make a vertical line). If there is, then it is NOT a function.
i hope this helps
Answer:
D. 8/9
Step-by-step explanation:
Calculators Rock!!!