Question

Lucy is painting one wall in her bedroom. The wall measures 13 feet long and 9 feet wide. If one can of paint covers 50 square feet will it be enough?

Answer 1

The area of the wall is figured by length * width.
Area of wall = 13*9=117 square feet
Since one can covers only 50 square feet you will not have enough with one can. You will need 117/50=2.34 cans. Assuming you can only buy full cans you would need to buy 3 cans.