1. which expression is equivalent to the one shown below?
(2x)^-3

a) -2x^3
b)-8x^3
c)1/2x^3
d)1/8x^3

2. which expression is equivalent to the one shown below?
(4z^2)^0

a)0
b)1
c)4z
d)4z^2

3. which expression is equivalent to the one shown below?

(5^4)^3

a)5^1
b)5^7
c)5^12
d)5^64