What fraction of the solutions to (x+1)^2 +(y−3)^2 ≤ 9 are also solutions to (x+1)^2 +(y−3)^2 ≤ 4?
The circle (x+1)^2 +(y−3)^2 ≤ 4 has an area of 4, and the circle (x+1)^2 +(y−3)^2 ≤ 9 has an area of 9, so the fraction is 4/9.
