Answer:
Step-by-step explanation:
1. Any sides that have the same line thing have the same side, so the unknown side is also 7x + 8. Now add all of them together to get 35x + 18
2. All sides are the same on a square, so 4(4x - 8) = 16x - 32
3. All sides on a pentagon are the same, so 5(2x -4) = 10x -20
4. All sides on a rhombus are the same in a similar way to a square, so
4(7x + 2) = 28x + 8
