Will give brainiest! please answer!

Step-by-step explanation:

1) 762 ÷ 2 = 381

2) Not sure but I think its 525 grams coz 350÷2=175 175×3=525

3) 7n-10

4) 12÷2=6 6 squared=36 3.14×36=113.04 113.04÷2=56.52

5) 6,6,6,6,13,13,13 (add them altogether u get 63 and ÷ by 7 = 9)

6) (5,-1)

7)376%

8) soz..i can't do this.

9)10/29

10) 30

11)£2.61

12) 12.4

...you're welcome...