What happens to the value of the expression 80 - 2r as r decreases?

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.

Aflower has 26 chromosomes. to create a new flower,how many would a sperm cell have what is called?

Ineed with this problem 21 show steps