6x3=18
20-18=2
Therefore the answer is 6 times
6:15:21
6:15:21= 2:5:7
<em>(when divided by 3)</em>
B is correct because -6.75 is smaller than -6.5
Answer: The correct option is fourth, i.e., 1935 cm³.
Explanation:
It is given that the vase is 30 cm tall and the hexagon base has an area of 64.5 cm².
The area of a hexagon base is,

Where, a is the side length.
The volume of the a hexagon glass is,


Where, A is area of base of hexagon and h is height of the hexagon glass.


Therefore the volume of the glass is 1935 cm³ and the glass can hold 1935 cm³ water. So, fourth option is correct.