14 because a negative minus a negative is a positive; you add a line and change the sign
Answer: b. 180
Step-by-step explanation:
The sum of the angles of a triangle is 180°.
Answer:
a,B,R
Step-by-step explanation:
Answer:

Step-by-step explanation:
The equation for a line is y=mx + b where m represents the slope
If a line is perpendicular to another line, it's slope is the negative reciprocal of the other line's slope.
The reciprocal of -4 is 
And the negative of that would be 