What is the notation for a contrapositive statement

Which of the following transformations will always produce a congruent figure?

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.

Find the dimensions of the circle. area = 64π in.² r= in.