Answer:

Step-by-step explanation:
Given
1: 5x + 20
2: Opposite of 20
Required
Find their sum
Suppose that a is a number; The opposite of a is -a. So, the opposite of 20 is -20.
Having said that:
The required sum is:

Remove bracket


Answer:
1
Step-by-step explanation:
i dont think this is right answer
Answer:
A
Step-by-step explanation:
(b-3)(b-3) would equal (b^2–6b+9), when using the foil method.
Angle Side Angle Theorem (ASA)
The Angle Side Angle Postulate (ASA) says triangles are congruent if any two angles and their included side are equal in the triangles. An included side is the side between two angles.