Which one is greater -3 1/4 or 3 6/25

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.

What is the y intercept of f(x)=(1/2)^x?

Aphrase is shown read the phrase and give me the answer