Alvin completely filled his 21-gallon tank of gas with regular fuel for $5523.
As he left the gas station, he noticed
the station across the street sold
regular fuel priced at $2.56 per gallon.
How much money could Alvin
have
saved per gallon if he had gone to the
station across the street?

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?