One white-black gap in education and standards of living that has NOT closed much in the last half-century is the __________ rate.

Industrialized states give trade concessions to less-developed countries to help with their economic development through the __________

Fill in the blank with the appropriate word.

Which of the following proposals to reform Social Security financing would lead to increased revenues to the program?

A. increasing the retirement age B. reducing or delaying cost-of-living adjustments C. lifting the cap on the amount of wages subject to the Social Security tax D. privatization of investments