The distance covered by a car traveling at a constant speed is directly proportional to the time spent traveling. If the car goes x=75 miles in y=2.5 hours, how far will it go in 7 hours?

Jake bakes and sell apple pies. he sells each pie for $5.75 . the materials to make the pies cost $40. the boxes jake puts the pies in cost & 12.50 total. how many pies does jake need to sell to earn a profit of $50