Gary has a collection of stamps. He tracks the number of stamps he collects every week. If x represents the number of weeks since he starts tracking and y represents the total number of stamps in his collection, which of the following situations is represented by the graph below?

Afamily has two cars. the first car has a fuel efficiency of 25 miles per gallon of gas and the second has a fuel efficiency of 15 miles per gallon of gas. during one particular week, the two cars went a combined total of 1025 miles, for a total gas consumption of 55 gallons. how many gallons were consumed by each of the two cars that week?