Can someone please solve this​

Step-by-step explanation:

y= -3x/2+b

at (-4,9)

9= -3(-4)/2+b

9= 12/2 +b

9=6+b

b=3

Rearranging:

3x/2 + y = 3

First, we have to find slope of points:

Slope(m) = y2 - y1/x2 - x1

Now, plug the value in y = mx + b (we can take any points as x & y)

So, y = mx + b

i think it is everything has to equal 180 so, if i correct 4=c. 6=d. 8=a. 7=b. and the last question would be c. because they are parallel lines and they are congruent.

step-by-step explanation:

the reason everything has to equal to 180 is because that is how it works. i'm guessing that is its rule. 4 and 8 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 6 and 7 are congruent and parallel so, that would be 30+30 because they have the same number. it would equal 60. 60+60 is 180. so, now you have your answer