Answer:
11a + 13c -b - 36
Step-by-step explanation:
We add all the sides together because we're looking for perimeter.
Answer: (1,5)
Step-by-step explanation:
1. To solve this, use the midpoint formula:

2. Insert your values into the equation to get your answer

3. Simplify the formula
(1, 5)
4. The midpoint is (1, 5)
The answer to this is 20%
If you have any questions on what I did, just leave a comment.
I tried to add my second image but it won't allow me. So, the base is 6 that you're missing for question 6. Good luck.
I ma taking algebra 2 also so i can help any time