According to the Economic Freedom of the World measure, between 2000 and 2010 the economic freedom of the United States
a. declined and its rank fell from third to tenth during this period.
b. increased, and the U.S. became the freest economy in the world during this decade.
c. was largely unchanged and the U.S. remained the third freest economy in the world, behind only Hong Kong and Singapore.
d. decreased, but the U.S. was still the freest economy in the world in 2010.
A
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The inverse dependency ratio is defined as the ratio of:
A. The average number of dependents per head of household B. The working-age population to the number of dependents C. The number of dependents to the number of the total population D. The number of parents and grandparents to the number of children
A radio manufacturer is experiencing theft problems at its warehouse and has decided to hire security guards to reduce the thefts. The firm wants to minimize the net cost of warehouse thefts. 
Given the above info, if each security guard is paid $200 a week and the cost of a stolen radio is $25, how many security guards should the firm hire?
A. 1 B. 2 C. 3 D. 4 E. 5