Help !! I don’t understand

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

Anumber cube is rolled two times in a row. find the probability it will land on 2 on the first roll and a number greater then 4 on the second roll

Jubal wrote the four equations below. he examined them, without solving them, to determine which equation has no solution. which of jubal’s equations has no solution hurry