13. Simplify each expression. Assume all variables represent nonzero real numbers.

Write each answer using positive exponents only.

a. (-5)²

b. -5²

c. 5²

d. 5⁰

e. -5°

f. (-5)⁰

9. w100. w25

Rang 3 of 10/nw100

W25

i. (x³)²

j. (5a²b¹)³

K. (-)

1. 2-3

h.

m.

n.

O.

P.

9.

S.

5/1/2

(³) **

u.

4

8y⁹x4

2y3x10

r. 5b³-4b²

8ab

8ab

-3

3x²

2y

0

t. 10x⁰ +9⁰

(a-³b)*

(ab²)-5/nt. 10x⁰ +9⁰

(a-³ b) ¹

(ab²)-5

u.

V.

(x-²y-

x-3y-5/

-3