From my work I believe it should be the third one.
Answer:
<h2>9.2</h2>
Step-by-step explanation:
The distance formula is:

-4 - 2 = -6 squared = 36
4 - -3 = 7 squared = 49
36 + 49 = 85
about 9.2
I'm always happy to help :)
Answer:
2x
Step-by-step explanation:
u have to add it and do a long method of working out