Need help kinda quick

Prove that 3: 8 is equivalent to 12: 32.a. use diagrams to support your answer.

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

Pepe and leo deposits money into their savings account at the end of the month the table shows the account balances. if there pattern of savings continue and neither earns interest nor withdraw any of the money , how will the balance compare after a very long time ?