How many times does 6 go into 85

Witch represents the inverse of the function f(x)=1/4x-12

Okay so i didn't get this problem petro bought 8 tickets to a basketball game he paid a total of $200 write an equation to determine whether each ticket cost $26 or $28 so i didn't get this question so yeahyou have a good day.

240 seventh graders and two-thirds of the students participate in after-school activities how many students participate in after-school activities