Whose scatter plot matches the data, and what is wrong with the incorrect scatter plot?

Aladder that is 30 ft long needs to reach 27 ft up a building. what should the angle of the vertical be?

The inside wheels of a car traveling on a circular path are rotating half as fast as the outside wheels. the front two wheels are six feet apart. what is the number of feet in the path traced by the inside front wheel in one trip around the circle? express your answer in the form "k \pi", where k is an integer.

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