Hector used 3 gallons of paint to cover 1,050 square feet and 5 gallons to paint an additional 1,750 square feet. The area covered varies directly with the amount of paint used. How many square feet will one can of paint cover?

Nola purchased 2.5 pounds of cheese for $10.50. Her mother purchased 3 pounds of the same cheese for $12.60. The cost of cheese varies directly with the number of pounds purchased. How much does one pound of cheese cost?

When a 49 pound weight is attached to a spring, the spring stretches 7 inches. Assume that the length of the spring y varies directly with the weight attached x. Write and solve a direct variation equation to find the length of the spring when a 63 pound weight is attached.

Justify Conclusions The money raised by the Drama Club selling raffle tickets is shown in the table. They can also raise money by selling tickets to the play for $6.25 per ticket. Assume that the money raised varies directly with the number of tickets sold. Which fundraiser has the potential to raise more money? Explain your reasoning to a classmate.