The formula of a slope:

We have the points A(-7, a) and B(c, d).
Substitute:

Exception: c ≠ -7.
Answer:
the answer is 210
Step-by-step explanation:
10×10=20+1=21, 21×10=210
Answer: B
Step-by-step explanation:
Reflection does preserve side length and dilation preserves angles.
the answer to the question is 799
(x - 10) × 2
You have to multiply it by 2 so that you get the area