Pls help me! Brainlist! I’m so confused!

When the ball has traveled a distance of

Benefit(s) from large economies of scale, in which the costs of goods decrease as output increases. natural monopolles perfect competition

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