Checking my work. which one?

Dividing exponents you subtract.

3^8/3^5 = 3^3

3^3

Multiplying exponents when an exponent is raised to another.

(3^3)^3 = 3^9

Apparently this makes no sense according to comments, if you want a more indepth look into exponents search "The properties of exponents".

answer:

in the base 10 (decimal) system, every place is ten times less than the one on its left and ten times greater than the one on its right.

step-by-step explanation:

-nfforlife