Pls help me i'll give brainliest

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 missing reason in the proof? segment addition congruent segments theorem transitive property of equality subtraction property of equality?

Determine if the equation defines y as a function of x: 2xy = 1. yes o no