Which expression is equivalent to 8^-3/ 2^-3?
a. 4^0
b. 4^-3
c. 1/4^-3
d. 4

  b.  4^-3

Step-by-step explanation:

The expression can be simplified to a number of different levels. Here, it looks like the answer choices want you to simplify it like this:

__

In this case, the applicable rule of exponents is ...

  (a/b)^c = (a^c)/(b^c)

13

step-by-step explanation:

169-1=168

168-3=165

165-5=160

160-7=153

153-9=144

144-11=133

133-13=120

120-15=105

105-17=88

88-19=69

69-21=48

48-23=25

25-25=0

since it took 13times to completely subtract it hence its square root is 13

step-by-step explanation: