a) How many multiples of 6 are between 100 and 500?

c) How many different integers between 100 and 500 are multiples of either 6, 8, or both?

a) There are 70 multiples of 6 between 100 and 500.

c) There are 99 integers between 100 and 500 that are multiples of either 6, 8, or both.