A student bought 11 pencils and a pad of paper. The pencils each cost the same amount. The pad of paper cost $4.99. The student spent a total of $18.74, not including tax. a. Write an equation that can be used to find the cost, x, in dollars, of each pencil.

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.

Ahiker stands at an unknown elevation before he ascends 2 miles up a mountain to an elevation of 9 miles. find the elevation of the hiker before his ascent.

The graph of a curve that passes the vertical line test is a: