F a stadium has 50,000 seats, how many concert tickets would have to be sold for the event to be 85% sold out?

Consider the proof. given: segment ab is parallel to line de. prove: what is the missing statement in step 5?

The graph of a quadratic function has a maximum at point (0, 5). the graph contains the point (2, 1). what is another point on the graph?

The diameter of the moon is about 3500 km. approximate the surface area of the moon using the formula for the surface area of a sphere, s = 4πr2. write your answer in scientific notation.