Carl needs to take 2 pairs of jeans and 4 shirts for every 4 days he spends at camp. Drag jeans and shirts into the box to show what Carl needs to pack for 14 days at camp.

Carl needs 1/2 pair of jeans per day and 1 shirt per day. If he does no laundry, he will require
  (1/2 jeans/day)*(14 days) = 7 jeans
  (1 shirt/day)*(14 days) = 14 shirts

Carl needs to pack 7 pairs of jeans and 14 shirts.