$7, I think. I would not be too sure about it, though.
Answer:
divide by 2
Step-by-step explanation:
Answer:
a=12
Step-by-step explanation:
If you solve for x, you divide by (a-12) to isolate x on the left side:
x = (a+8)/(a-12)
If the numerator is 0 you will be dividing by zero, which invalidates the solution. This will happen for a=12.
Answer:
$96.50
Step-by-step explanation:
I could be wrong but 20.5 and 7.5