Question

Plz help me guys all i need is 7-9 i know its a lot but well worth it. 12 POINTS EACH ANSWER!!

Please NO guessing and try you're hardest THANKS!!

Answer 1

Answers:

10.

B: Austin did not combine -3 and -9 correctly.

11.

x=8.5

12.

2r-4s

13.

10x+3y

14.

k=2