Which line has a slope of -2

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 binomial expansion of (2x-3)^5

Can someone me i’m confused. will give brainliest and a whole bunch of points