Sue needs an apartment for 9 months. A 12- month lease is 700 dollars per month, with the first month free. A monthly lease is 900 dollars per month . Which is cheaper for 9 months?

12-month: 7,700 dollars. Monthly : 8,100 dollars . 12-month lease is cheaper.

12-month: 8,400 dollars. Monthly : 8,100 dollars. Monthly lease is cheaper .

12-month: 7,700 dollars. Monthly: 10,800 dollars. 12-month lease is cheaper.

12-month: 9,900 dollars. Monthly: 7,200 dollars. Monthly lease is cheaper.