Answer:
A. 7.07 units
Step-by-step explanation:
Use the distance formula for coordinates:

Fill in the coordinates accordingly:

which simplifies down to

which is of course

Plug that into your calculator and you'll get the answer
I think its 4 because the lines intersect 4 times but its been too long since ive done nonlinear equations
Answer: C
Step-by-step explanation: all real numbers can solve this problem