What the height of a cube if the volume is 729centimeters to the third power

Atriangle has sides with lengths of 10 yards, 13 yards, and 18 yards. is it a right triangle?

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.

Yesterday i ran 5 miles. today, i ran 3.7 miles. did my percent increase, decrease or is it a percent error? plz i need