Answer:
C) 
The slope of the perpendicular line
Step-by-step explanation:
<u><em>Explanation:-</em></u>
Given that the slope of the given line is
The slope of the perpendicular line
= 
The slope of the perpendicular line
= 
<u><em>Final answer</em></u>
The slope of the perpendicular line
7x+5y=-24 (1)
4x+y=42 (2)
multiply equation (2) by 5 to get
20x+5y=210 (3)
then calculate (3)-(2) which gives you
13x=234 hence x=18
then substitute for x in either equation to get y=-30
Answer:
20.875
Step-by-step explanation:
18+24+17+21+24+16+29+18=167/8=20.875
A. 80
b.100
c.80
d.80
e.20
f. 120
These are all in degrees.
Hope this helps.
Foxeslair
