You have a ribbon that is 7 1/2 inches long you use 1/2 of it on a project how many inches of ribbon are left

7x+8y=-18, 4x-9y=-3 solve the system of equations

James is playing his favorite game at the arcade. after playing the game 3 times, he has 8 tokens remaining. he initially had 20 tokens, and the game costs the same number of tokens each time. the number t of tokens james has is a function of g, the number of games he plays. write the function’s formula? t=

Find the value of x for which line a is parallel to line b