| 1. 4 50 2 | 2 | 2. 1 | 2 2 3 | 3. 0.5 100 | 1 2 3 | 4. 200 250 1 | 3 4 | 5. ︵ 50 ︶ | 750 25 | 3 | 6. | | 7. 250 25 | | | |