What is the volume of a rectangular block that is 10 centimeters high,15 centimeters long, and 5 centimeters wide

In 2014, the three largest economies in the world were (listed in order, from largest): a) the u.s., china, germany. b) the u.s., china, japan. c) china, the u.s., japan. d) china, the u.s., germany.