Which lines are perpendicular to 3x-y=10? select all that apply a. y=3x+5b. y= -1/3x+17c. x+3y=27d. y-2=1/3 (3x+36)

Ineed to learn how to solve this problem

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.

Answer pls man im trying to get out of summer school