SUPER EASY (SURFACE AREA) MATH

I’m stuck on this i don’t understand.

Define multiplicative inverse. give an example of a number and its multiplicative inverse.

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.