What has for congruent sides?

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.

Math each whole number with a rational, exponential expression

Evaluate the expression. (9 + 5)(3 + 2)0