A bookstore is selling books for $10 each. The graph below shows the relationship between the number of books, x, the store sold and the total amount of money, y, paid from the book sales. Write an equation that represents the relationship between the number of books sold and the total amount paid, in dollars.

Efficient homemakers ltd. makes canvas wallets and leather wallets as part of a money-making project. for the canvas wallets, they need two yards of canvas and two yards of leather. for the leather wallets, they need four yards of leather and three yards of canvas. their production unit has purchased 44 yards of leather and 40 yards of canvas. let x be the number of leather wallets and y be the number of canvas wallets. draw the graph showing the feasible region to represent the number of the leather and canvas wallets that can be produced.