How much greater is the area of a circle with a radius of 6.2 inches than the area of a square with a side length of 4 inches?

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.

If 1/√5+1/√5+1=p+q√r , find the values of p, q and r

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