Answer:
A, the first option
Step-by-step explanation:
Answer:

3^2 * 3^5 = 3^7
Step-by-step explanation:
I assume you mean this:

If so, then the rule is that when you multiply two numbers with the same base, you give the same base and add the exponents.

Answer:Mark
Step-by-step explanation:Diva
Height/width=5/19
5/19=2/x
(5)(x)=(19)(2)
5x=38
5/5x=38/5
x=38/5in or 7.6in
D. 3 and 9
(Also 12 which isn’t in the options)
3:1,3
9:1,3,9
12:1,2,3,4,6,12