Answer:
See below,please.
Step-by-step explanation:
Volume of water = meter reading (11) - meter reading (8)
=

Answer:
20
Step-by-step explanation:
3x + x + 100 = 180 (sum of angles on a straight line)
4x = 180-100
4x=80
divide both sides by 4
x=20
Answer:
21.8
Step-by-step explanation: