Find the product of -6/9 and it's multiplication inverse

Which expression is equivalent to -5(3x - 6/7)

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=

Varies inversely with x. if y=8.5 when x=-1 find x when y=-1