A movie poster is 2 feet wide and 4 feet tall. A frame shop charges $0.10 per foot for a black metal frame. How much would it cost to buy a black metal frame for the movie poster?
Because 2 feet wide by 4 feet tall is equal to 8 ft. And the frame shop charges $0.10 per foot. So you multiply the 8 ft (area) by $0.10 and you get $0.80.