Find the greatest common factor of 39 and 9

Jermaine has t subway tokens. karen has 4 more subway tokens than jermaine. raul has 5 fewer subway tokens than jermaine. which expression represents the ratio of karen's tokens to raul's tokens

Asystem of equations has 1 solution.if 4x-y=5 is one of the equations , which could be the other equation ?

Write an inequality for this sentence the quotient of a number and -5 increased by 4 is at most 8