Answer:
Amount of Water needed to be filled is 150.79 cubic inches
Explanation:
The volume of the flower vessel which is in cylinder form is given as

Where r is the radius and h is the height
r = 3 and h = 8
Hence


V= 226.19
Hence Volume of the vessel is 226.19 cubic inches
She was told that she is supposed to fill the vessel only
of the total volume
Hence the amount of water to be filled will be

150.79 cubic inches