It is C..........................Happy Birthday
Answer:
I cant help unless i have workable units (0.5) is not a point
but im guessing that you were trying to say (0,5) in which case its
7.07106781187
its a triangle
5 on one side
5 on the other
solve for the hypotenuse
hypotenuse = 
hypotenuse = 7.07106781187
I hope this helps!
Answer:
2
Step-by-step explanation:
Because 3-1 is 2 and 1/4-1/4=0
So 2