Question

please answer me fast please answer me fast please no need explaination
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Answer 1

Answer:

Step-by-step explanation:

9.  8.33

10. 28.72

11. idk

12. (n+1)/2

13. 24

14. 25

15. upper limit

i dont know 11th answer but i hope these help!!!!!!

Thanks!!!!!!!!!

Do mark me as the brainlliest!!!!!!!!!!!!!!!