Which is the better definition of y = mx

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.

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much

The owner of the plant nursery where you were tells you to fill 350 ml bottles from a 30 l from a fertilizer