The standard form of a circle is:

Your center is
and your radius is 
Plug them into the equation and you get


The correct answer is D.
Step-by-step explanation:
F respiratory system only remove carbon dioxide from the body
Answer:
Reindeer and snowflake are 4
tree is 8
snowman is 1
Step-by-step explanation:
Answer:
c
Step-by-step explanation:
Look at (3,1) (5,9) (4,5)
Hi!
Okay, so this actually isn't too bad! (For number 5) Just add the negative x over to get 2x. Then subtract 2 over to get -10. Then divide by 2 (-5) and you're done! For the rest, do the same thing. Get the x's on one side, get the regular numbers on the other, and divide! Hope that helped!