Which equation is the inverse of y=3x?

My math teacher told my class to "steal" a 6th grade fraction word problem from the internet, word problems? : -p requirements: only a 1 step word problem. needs to be complex.

Asquare and an equilateral triangle have the same perimeter. each side the triangle is 4 inches longer than each side of the square. what is the perimeter of the square

Apackage of five erasers cost 0. $.39 at this rate how many how much would 60 erasers cost in dollars and cents