The circumference of a circle is 20 pi inches. What is the area in square inches of the circle express your answer in terms of pi

Find the number of positive three-digit even integers whose digits are among 9, 8, 7,5, 3, and 1.

Three people are traveling and need to exchange the currency of their native country for the currency of the country they are visiting. drag each exchange to the category that shows the ratio of currencies in that exchange.

If the altitude is drawn to the hypotenuse of a right triangle, then the two triangles formed are similar to the original triangle and to each other. which set of triangles shows the similar triangles created by the altitude in the diagram?