Answer:
The slope is 3/5.
Step-by-step explanation:
I am assuming you mean
10x + 6y = 84
6y = -10x + 84
y = -5/3 x + 14.
So the slope of this line is -5/3 and the slope of a line perpendicular to it is
-1 / -5/3 = 3/5.
2x + 5y + 30 = 0
2(52) + 5y + 30 = 0
104 + 5y + 30 = 0
134 + 5y = 0
5y = -134
y = 
Neither A, B, C, or D are the the correct answer. Did you mistype the problem?
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