A housecleaning company receives $25 for each house cleaned. The table below gives the relation between the number of workers and the number of houses that can be cleaned per week. Based on the above info, the marginal revenue from the fourth worker is

The population is 1,000 million, the labor force is 750 million, and the number of unemployed is 30 million. What is the unemployment rate?

A) 4 percent B) 3 percent C) 10 percent D) 7.5 percent

Which nation made the greatest commitment to establish permanent settlements in its colonization strategy?

a. England b. France c. Holland d. Spain