Please Help Me!!! WIll Mark Branliest!!

Answer:
49 + 2.5pi
Step-by-step explanation:
8 + 5 + 9 + 9 + 18 = 49
to find the circumference of a circle you do the diameter times pi and the diameter is 5. Since this is a semi circle the 5 becomes 2.5.
Answer: Well if you add all the sides your get 54… can’t do rest
Step-by-step explanation: The length on bottom is 18, and the top it shows only 8+a+5=18 a=?
8+5=13
18-13=5
a=5