Answer:
Step-by-step explanation:

Answer: b=-12
Step-by-step explanation:
120/-10 = -12
-10b/-10 = b
b=-12
Answer:
0.2692307692
Step-by-step explanation:
14/52 = 0.2692307692
A
Step-by-step explanation:
I do now know what this is about
Answer:
-1 
Step-by-step explanation:
4x-8y=15
4x-8y-4x=15-4x
-8y=15-4x
-8y/-8=15-4x/-8
y=-1 7/8+1/2x
slope is -1 7/8