A bus travels 1 1/2 hours for 80km. How many hours does it take to travel 4000km.​

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

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

Awater truck is filling a swimming pool. the equation that represents this relationship is y=19.75x where y is the number of gallons of water in the pool and x is the number of minutes the truck has been filling the pool.