Answer:
30 C
Step-by-step explanation:
How to find difference: t1 - t2
Subsitute:
18 - (-12)
Double negative signs make a positive.
18 + 12
30
The answer is 2.5
Hope it helps
i dunno
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f(x) = 6x + 9.
y - 6x - 9 = 0
y = 6x + 9.
So that would be: