Hong kong had a population of approximately 7,000,000 people. the area of hong kong is approximately 1042 square kilometers. what was the approximate population density of hong kong in persons per square kilometer?

If a is a nonzero real number then the reciprocal of a is

Which of the following is an example of conditional probability

Tommy buys a sweater that is on sale for 40% off the original price. the expression p -0.4p can be used to find the sale price of the sweater, where p is the original price of the sweater. if the original price of the sweater is 50, what is the sale price?