Part way through painting her room, Sam runs out of paint. • She estimates that there are about 125 square feet left to paint.
• The purple paint that Sam is using is only available in 1-quart cans.
(Assume she must buy whole cans of paint.)
• Each can of paint covers 40 square feet.
How many cans of paint does Sam need to buy to finish painting her room?
Explain to Sam why she needs this many cans of paint.