Ineed on this 5th grade math! #14

Amovie streaming service charges it’s customers $15 a month. martina has $98 saved up. will she have any money left over if she pays for the maximum amount of months she can afford? explain.

Kendra had twice as much money as kareem. kendra later spent $8 and kareem earned $6. by then, the two had the same amount of money. how much money did each have originally?

Use composition to determine if (x) or h(x) is the inverse of f(x) for the limited domain x2-1.