What is the simplified form of each expression?

1).

A1

B0

C-5.1

D)-1


2). 3g^-2 b^2

A3b^2/b^2

B3g^2 b^-2

C3gb^-4

Db^2/3g^2

3). 3/g^-2 h^3

A3/g^2 h^3

B3g^2/h^3

C6^g/h^3

D3/gh

4). What was the value of 2x^-2y^-2 for x=3 and y= -2

A1/18

B72

C2(-6)^-4

D1/648

5). What was the value of 1/2^-2 x^-3 y^5 for x=2 & y= -4

A16

B-4

C-1/32

D-16