The answer I believe is the third choice.
3, -2, -7, -12
These all fit into f(n)-5=f(n+1)
Answer: y = 108
Step-by-step explanation:
The shortest side is 3 m and the other side is 4 m. If you put all these numbers in the Pythagorean Theorem it checks out. (3^2+4^2=5^2)
