Additional Fertilizer per Acre (gallons) At what point is the marginal benefit of applying additional fertilizer no longer greater than the marginal cost of the fertilizer?
A.3 gallons
B. 4 gallons
c. 5 gallons
D. 6 gallons
E. 7 gallons

B. 4 gallons

Explanation:

Up until the 4th gallon of fertilizer added, the cotton harvested had increased by more than 1 ton for every gallon added. After the 4th gallon was added though, the Cotton harvested stayed the same regardless of how much more gallons were added. At the 4th gallon therefore Marginal benefit of gaining more tons of cotton stopped being greater than the additional gallon of fertilizer added.

native americans suffered high rates of poverty and unemployment.

during the late 1960s and early 1970sthe need for political militancy grew among the native americans. throughout the 1960s, they had been the nation's poorest minority group, the most deprived group, according to practically every socioeconomic measure. in 1970, the indian unemployment rate was 10 times the national average, and 40 percent of the native american people were below the poverty line.