What is: a^2 x a^3 (a squared times a cubed) tysm :)

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 are the excluded values? m+5/mn+3m

Which geometric principle is used to justify the construction below?