_____________ is (are) the key factor in explaining the decline in death rates in the U.S. in the late 19th and early 20th century

a. Improved sanitation
b. Improved medical treatments
c. Urbanization
d. A more varied and nutritious diet

a. Improved sanitation

Economics

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According to the above table, as the level of real disposable income increases

A) the APS increases. B) the APC increases. C) the marginal propensity to save declines. D) the marginal propensity to consume increases.

Economics

Suppose that the chain-weighted index for GDP in Gambia was 275 in 2015 and 350 in 2016. The inflation rate between those two years was approximately

A) 20.2 percent. B) 27.3 percent. C) 37.5 percent. D) 75 percent.

Economics