Please help! A little confused.

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 expression is equivalent to 1/2(2+3x-6)

15/16 as a decimal rounded to the nearest hundredth