Sadye has the algebra test scores shown. if her goal is to have a test average of 90 or higher what is the lowest score she can make on her next test and still achieve her goal? note: scores are not rounded.

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?