Answer:
55-15= 40
55,000-10,000=45,000
45000/55=819
i think it is 819?
Step-by-step explanation:
When you write the equation of a circle in the form

Then the center of the circle has coordinates
and the radius is 
So, in your case, the center of the circle is 
Answer:
1
Step-by-step explanation:
4/5 is closer to 1
Answer: -40
Step-by-step explanation: the equation for this is y=mx+b the slope is m and y intercept is b