My guess would be distributive. i maybe be wrong so don't get mad if I'm wrong.
Answer:
5/-1
Step-by-step explanation:
y1-y2/x1-x2
64.5
(x + 8) × 4 = 21 × 4
Explanation:
x + 8 = 21
21 - 8 = 13
(13 + 8) × 4 = 21 × 4
21 × 4 = 21 × 4
84 = 21 × 4
84 = 84
The last one
measure angle 2 and 6 to see if congruent
