Alexander has a rectangular shed that has a width of 200cm. the length of it is 3 times the width what is the length?

if alexander wants to put a string of lights around his shed, what length of lights should he buy?

David and alton are training for a race. they spend 35 minutes stretching and then go on a 5 mile practice run. david runs at a pace of 7 min/mile. alton runs at a pace of 8 min/mile. write an equation for each runner that shows the total length of their workout. then solve each equation showing your work