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Let w=23 . what is the value of w + 45 ?

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.

If c(x) = 4x – 2 and d(x) = x2 + 5x, what is (cxd)(x)