Suppose the quantity of x is measured on the horizontal axis. If the income consumption curve is vertical, then the income elasticity of demand for x is

A parent wants to save 50,000 for her daughter's education. She needs this amount in six years. How much does she need to begin saving a year from now, every year, if the savings can be invested at 5%?

The prices of petroleum products, including gasoline and fuel oil, decline sharply. Which of the following will most likely result from the lower prices of petroleum products?

A capital lease:

Which measure of dispersion does not disregard the algebraic signs (plus and minus) of each difference between X and the mean?