Question

Please help me with these questions
Full solutions needed

Answer 1

Too many questions. ?

4. 1 therefore answer is B

5. A , 4

6. 6 option c

7. B 9831

8. A 30

9. b +4a

10.    -10.42

11. I don't know

12. C


Thank u ★★★
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Answer 2

here are the solutions.
I have tried my best.

PS: Number of attachment = 2