If eight balls can be purchased for $48, what is the unit rate? * $48/8 balls
$1/6 balls
$6/1 ball
2 balls/$12

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