A shop keeper earns a profit of 12% on selling a book at 10% discount on the printed price. The ratio of cost price to the printed price of the book is
If a consumer's demand for a good moves in the same direction as the consumer's income, the consumer's demand for that good must be inversely related to the price of the good is called __________.
Ocean trenches are the deepest parts of the ocean. Deep ocean trenches are associated with Constantly Moving a certain type of volcanic chain called an island arc and with zones of high earthquake activity.