**Q8: **

Write in the form .

- A
- B
- C
- D

**Q9: **

If , which of the following is equal to the volume of this cube?

- A
- B
- C
- D
- E

**Q10: **

Simplify .

- A
- B
- C
- D
- E

**Q11: **

Simplify .

- A
- B
- C
- D

**Q12: **

Simplify .

- A
- B
- C
- D
- E