How to get a perimeter of 200

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.

For which pair of functions is (gof)(a)=|a|-2?

Polynomial that can be factored as (3x-4)(3x+4)