You answered correctly if you wrote:
| 1. | [3] = | dimensionless |
| 2. | given sin (wt), where t is time, [w] = | T-1 |
| 3. | [sin (wt)] = | 1 (dimensionless) |
| 4. | [force] = | M·L/T2 |
| 5. | [height] = | L |
| 6. | [frequency] = | T-1 |
| 7. | [displacement] = | L |
| 8. | [area × volume] = | L5 |
| 9. | [0.5 × volume] = | L3 |