72.94 / 5.7 (pls show work)

Which statement best describes the polynomial

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 ?

Which expression is rational? 6. , square root two, square root 14, square root 49