The average price for used DVDs at Moe's Movies is given by the equation y = 4x. In this equation, x represents the number of DVDs purchased and y represents the cost in dollars. Based on the equation, which of the following is a true statement

A. 40 used DVDs cost $10
B. The cost of 30 used DVDs is $120
C. 30 used DVDs cost $34
D. The cost of 60 used DVDs is $30

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.