Answer:
Ok im using a standered form calculator:
1. 9/7x + 1/7 = -8
2. y = -6/5x - 3 = -11
3. y = 1/3x - 2 = -10
Step-by-step explanation:
I will be glad to help more
D. one kelvin is the answer
I would say 8.0 Because if you do 12.6-4.9 you get 7.7 ...hope that helped