Does anyone know which angles are complementary

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.

Consider the following function. which of the following graphs corresponds to the given function? w. x. y. z. a. z b. y c. x d.

The equation of a parabola is given. y=18x2+4x+20 what are the coordinates of the focus of the parabola?