Icant figure out this problem. could really use some

There are essentially three rules in these sorts of power multiplication problems:

These rules just tell us a negative exponent means the reciprocal of the same thing with a positive exponent, that when we multiply factors with the same base we add their exponents, and when we raise something to a power to another power we get to multiply the exponents.

Let's do the algebra before we substitute (we could do it either way).

Substituting p=-2, q=-1

4, last choice

A measure of spread, sometimes also called a measure of dispersion, is used to describe the variability in a sample or population. One measure is would be the range. The range of a set of data is the difference between the highest and lowest values in the set. Therefore,

Set A: range = 28 - 4 = 24
Set B: range = 24 - 3 = 21

Set A is the data set which has a wider spread. Hope this answers the question.