What is a worksheet group? How do you select an adjacent worksheet group? How do you select a nonadjacent worksheet group? How do you deselect a worksheet group? How do you apply the same page layouts to all the worksheets in a worksheet at one time? How would you use 3-D references to add values across worksheets?

In north korea, a farmer’s income is the same as a dentist’s income. in a country with a mixed or market economy, the difference between those two professions might be more than 5 times different. how can you explain the fact that individuals doing the same work in different countries do not earn comparable salaries?