55% as a fraction or mixed number in simplest form

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.

Which expression is not a polynomial?

Find the distance from the theater to the library. leave your answer in simplest radical form if necessary. 12 √12 74 √74