I need u to answer pls

The vertices of a triangle are a(7,5), b(4,2), c(9,2). what is m

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

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.