Since the number before the number in the tenth place (7) is greater than 5 (8), you will be rounding up. So your answer is 9.80
You will need 12 bottles of juice, but you will have some leftover because 16 does not go evenly into 180
The prism is (8 in)/(1/4 in/cube) = 32 cubes by (4 in)/(1/4 in/cube) = 16 cubes by (9/4 in)/(1/4 in/cube) = 9 cubes.
The number of cubes needed to fill the prism is
.. 32 * 16 * 9 = 4608
The answer would be 30 since you multiply 5 and 6