The diameter of a small pizza is 9 inches. How much more area of pizza do you get if you order a medium pizza with a diameter of 12 inches? Use 3.14 for pi and round your answer to the nearest hundredth.

34 cup. a serving of vegetable soup is 23 cup. the restaurant sold 20 servings of chicken noodle soup and 18 servings of vegetable soup. how many more cups of chicken noodle soup did they sell than cups of vegetable soup?

At which value in the domain does f(x) =0?

Which is the equation of an ellipse with directrices at x = ±4 and foci at (2, 0) and (−2, 0)?