Answer:
Drew's water bottle holds more.
1.39 L.
Step-by-step explanation:
The volume of a cylinder is calculated with the equation:
V = h*pi*d^2/4
where V is the volume, h is the height and d is the diameter.
The volume of Drew's water bottle is:
V_Drew = 7 * pi * 6^2 / 4 = 197.92 in3
The volume of Beau's water bottle is:
V_Beau = 9 * pi * 4^2 / 4 = 113.097 in3
The Drew's water bottle holds more water.
The difference of volume between the bottles is
V_Drew - V_Beau = 197.92 - 113.097 = 84.823 in3
One cubic inch is equal to 0.0163871 liter of water, so 84.823 in3 is equal to 84.823*0.0163871 = 1.39 liter of water.
So Drew's bottle can hold 1.39 liter of water more than Beau's bottle.