4. the depth of the water in a water tank changes
every time someone in the harrison family takes a
bath or does laundry. a bath lowers the water
level by 4 inches. washing a load of laundry
lowers the level by 2 inches. on monday the
harrisons took 3 baths and washed 4 loads of
laundry. by how much did the water level in the
water tank change?