Joan paid $6.77 on a dog toy, and a cage cost her $13.52 with two $20 bills. Joan also found a dollar bill on the ground. How much did she receive?

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 ?