Answer:
12x + 4x + 20
4(3x + x + 5)
4(4x+5)
Step-by-step explanation:
Answer: These ARE congruent to each other.
Step-by-step explanation: Do you see the ''tick marks?'' They both have 1 set of 2, and 1 set of 1. If that makes sense. They also have a "angle" in one of their acute angles.