Can someone please do this problem for me please show all your work thank you!

For what value of (y) is 3^3/3^y =1/9

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 ?

Atriangle has side lengths of x, x+11, and 3x+5. what is the perimeter?