Help me with this question, don’t not understand.

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.

In which form is the following function written? y = - 2(x – 3)(x + 5)

Acomputer store bought a program at a cost of $10 and sold it for $13. find the percent markup