Let A be the set of integers that are multiples of 3 between 1 and 15 inclusive and B be the set of even natural numbers up to and including 20. Find A∩B.

Compare the following pair of numbers a and b in three ways. a. find the ratio of a to b. b. find the ratio of b to a. c. complete the sentence: a is percent of b. a=120 and b=340 a. the ratio of a to b is . b. the ratio of b to a is . c. a is nothing percent of b.