I think it'd be better if you gave us some sort of diagram with it?
Answer:
9
Step-by-step explanation:
1, 3, 5, 9, 15, 19, 19
I'm guessing you find the length of the hypotenuse using the pythagorean theorem.
a² + b² = c² a and b are the legs and c is the hypotenuse
15² + 8² = c²
225 + 64 = c²
289 = c²
√289 = √c²
17 = c
hope that helps, God bless!
Answer:

Step-by-step explanation:

The answer is C
y=kx. where k is a constant
sub y=34,x=2
2k=34
k=17