To draw a graph of y=2-1/2x the point on the graph starts a 2 then the next point goes down because of the -1/2x so it would subtracting 0.5 from each previous point
The formula for a circle is (x - h)^2 + (y - k)^2 = r^2
Where (h, k) is the center and r is the radius.
x^2 + (y - 8)^2 = 25
25 = r^2
So the radius is sqrt 25 or 5.
Radius = 5
It will be c i showed how on paper
The temperature is 3 degrees less then it was at lunchtime when he went to bed you didn’t ask a question or explain it so I’m assuming this is what you meant
Fourteen over twenty five
hoped that helped<span />