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Answer :

Answer:

3: 0.625

4: 2.2

7: 1.083

8: 4.285

11: 1.1

12: 0.08

Step-by-step explanation:

Answer:

3. 0.625

4. 0.364

7. 1.083

8. 4.286

11. 1.1

12. 0.08

Step-by-step explanation:

i did my best, sorry if its wrong :)