QUUESTION Today, everything at a store is on sale! The store offers a 20% discount. If the regular price of an item is `x` dollars, write an expression (not an equation so no equal sign) that can be used to find the discount price in dollars?

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?