Answer:
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Step-by-step explanation:
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Answer:
The slope of the line is 
Step-by-step explanation:
For any line
, a line that is perpendicular to it is
.
Therefore the slope of the perpendicular line is
.
For our case
therefore the slope of the prependicular is the reciprocal of
multiplied by 

Simplifying both sides of the equation then isolating the variable
Answer:
A=15
B=13??
C=15
D=85
Step-by-step explanation:
B is the only one I'm not sure
Answer:x=-8
Step-by-step explanation:subtract 21 from both sides then simplify 31-21 to -8