Answer: a
Step-by-step explanation: its getting rid of water and the original is 40
Answer: D.
Step-by-step explanation: it’s D because when you do the volume of mode A, you get 48 units. When you do the volume of model B you get 40 units. Use the formula V=length x width x height!
Should be 21 boys because 7+7+7 equal 21 and 3+3+3 equal 9 which equals 30
