Blake and sandra are having a rummage sale. blake drags 3 boxes a distance of 10 meters each. he exerts a force of 20 newtons on each box. sandra drags 4 boxes a distance of 12 meters each. she exerts a force of 15 newtons on each box. blake takes 2 minutes to complete his work. sandra takes 4 minutes. blake does work than sandra. blake’s power is than sandra’s power. (hint: use w = fd and .)