Question: Rewrite the expression 3(x + 5) - 2(x - 4) using the distributive property.
+
Math question: Consider a circle with the equation x^2 + y^2 = r^2. If the radius, r, is 4 units, what are the possible values for the coordinates (x, y)?
+
Find the equation of an ellipse with a vertical major axis, a center at (3, -1), a minor axis length of 6, and a major axis length of 10.