8.90 x 3.12 will give brainlist

How do you determine whether a relationship represented as as graph is linear or nonlinear

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?

Find the measure of angle c in the following triangle.