PLEASE HELP ME QUICK!!

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.

Me because i don't understand how to do it.: )

What is the measure of angle 3? a. 120 degrees b. 90 degrees c. 45 degrees d. 30 degrees