An elevator raises a 75.0 kg person 12.6 m. How much work does the elevator do?

Iam having trouble with this question on my homework. if you could , i would greatly appreciate it! (: problem : maya and her family took a boat tour to see crocodiles while vacationing in australia. the boat goes 8 miles per hour in still water. the current of the river is 2 miles per hour. the trip downstream took 1 hour less than the return trip against the same current. find the total distance maya traveled. you. : d