Answer: 
Step-by-step explanation:
By the Pythagorean theorem, the unknown side has length

Therefore,

Answer:
s=19
Step-by-step explanation:
18s-17s+1=20
s+1=20
s=20-1
s=19
Answer: C.)The survey should include all music choices.
Step-by-step explanation: To be honest i'm not sure-.
Answer:
well my brothers parakeet died 2 days ago sooooooooooooo......
Step-by-step explanation: