Tony has a barrel to catch rainwater to use for household chores. The graph shows the volume of water in the barrel during a rainstorm.

a. At one point Tony took water out of the barrel to wash the dishes. When he do that?
b. Approximately how many liters of water did he take out?
6:00 p.m.; 0.8 liter 3:30 p.m.; 0.9 liter 5:00 p.m.; 0.8 liter 5:30 p.m.; 0.2 liter
(1 point)

a. Tony took water out of the barrel at 5:30 p.m.

b. Tony took out approximately 0.2 liters of water.