Help ill mark you brainlist write in y=mx+b form

Collin did the work to see if 10 is a solution to the equation r/4=2.4

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?

How many square inches are in 60 square feet?