$450 and sold them for $828. what is the mark-up, as a percentage?

What is the value of x? enter your answer in the box. (cm)

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 exponential function has an initial value of 2? f(x) = 2(3x) f(x) = 3(2x)