MATH QUIZ! plz help thanks!

Elena and her husband marc both drive to work. elena's car has a current mileage (total distance driven) of 15,000 and she drives 23,000 miles more each year. marc's car has a current mileage of 46,000 and he drives 9,000 miles more each year. will the mileages for the two cars ever be equal? explain.

1) you deposit $2,500 in an account that earns 4% simple interest. how much do you earn in eight years?

Factor the polynomial by its greatest common monomial factor.