1. (-5.1)^0

* 1

2. 3g^-2 b^2

* 3b^2/g^2

3. 3/g^-2 h^3

* 3g^2/h^3

4. 2x^-2 y^-2 x=3 y=-2

* 1/18

5. 1/2^-2 x^-3 y^5

* 16

7 answers

All are correct but the last one is no very detailed
#5 can be either

1
_________________

2^(-2) x^(-3) y^(5)

or

1
______ x^(-3) y^(5)

2^(-2)
If its the 1st equation, it's -3.375
If its the 2nd equation, it's -4.7407
Is the last one -1/32?
can you type out the equation correctly?

as in use appropriate parenthesis
so i can better help you