PLEASE HURRY his is so confusing

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.

Which expression represents the total perimeter of her sandwich, and if x = 1.2, what is the approximate length of the crust?

Is (root2 -2)^2 rational or irrational. show the steps and answer fast