i need help with this math problem???

Question

A- at the time of 6 minutes ,the car is traveling 50 miles per hour.at that same time the car is getting 10 miles per gallon. at this moment ,how fast is gas beeing used in gallons per hour??

B-using the imformation provided in the graph, create a graph of the gallons per hour used by the car as it depends on the time

Answer 1

A-5 gallons per hour (i think they're driving a hummer)

B-i think i need to read the information in the graph.