D the slope of the line is a zero slope
Do 9+4 because you need to get m alone. you get 13 plug 13 in for m (13-4=9) and then 9=9
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Answer:

Step-by-step explanation:
Add 9 to both sides of the equation, and divide by the coefficient of B.
T = BA -9
T +9 = BA
(T +9)/A = B
We can rewrite that with B on the left:
B = (T +9)/A