Question
The figure shows a rectangular glass tank partly filled with 6-cm cubes. After adding 7 extra cubes,
  1. How many more cubes are needed to the tank completely?
  2. What is the volume of glass tank?
4 m
(a)

Click button first when a symbol is required. X

(b)

Click button first when a symbol is required. X

The figure shows a rectangular glass tank partly filled with 6-cm cubes. After adding 7 extra cubes,
  1. How many more cubes are needed to the tank completely?
  2. What is the volume of glass tank?