Deshawn is covering a 4 yard by 1 3/4 yard section of his bedroom wall with decorative tiles. the tiles are 1/4 by 1/4 yard. how many tiles will it take to cover 1 square yard?

Tomas used 3 1/3 cups of flour and now has 1 2/3cups left. which equation can he use to find f, the number of cups of flour he had to begin with? f+3 1/3=1 2/3 f-3 1/3=1 2/3 3 1/3f=1 2/3 f/3 1/3=1 2/3