| 1. | |
| A | $1000 |
| B | $500 |
| C | $700 |
| D | $800 |
| 2. |  |
| A | The plane's cruising altitude changes during the flight. |
| B | The plane spends the longest time at its highest altitude. |
| C | The plane descends quickly then lands. |
| D | The plane gains altitude quickly at take off. |
| 3. |  |
| A | 5x2 + 11x + 4 |
| B | 5x2 + 17x + 12 |
| C | -x2 + 11x + 4 |
| D | x2 - 11x - 4 |
| 4. |  |
| A | 13(x + y) = 2000 |
| B | 8y = 5x ? 2000 |
| C | 8y = 5x + 2000 |
| D | 5x + 8y = 2000 |
| 5. |  |
| A | It is decreasing by 95% each year |
| B | It is decreasing by $1250 each year |
| C | It is decreasing by $2250 each year |
| D | It is decreasing by 5% each year |