Which of the following best explains why the special assignment of section 16 of each township in the ordinance of 1785 could be viewed as a turning point in american history? a. it set a precedent for government support for public education
b. it provided for the assimilation of american indians through reservation schools
c. it created the first formally operated schools in north america
d. it established that all residents had equal to public education

A. It set a precedent for US federal support for public education            

Explanation:

The Land Ordinance,1785 was adopted in the year 1785,  20th May by the U.S. Congress.  It established a standardized system for the settlers who could purchase farmland in the undeveloped west. One of the important result of the Ordinance of 1785 was that it helped to promote education in the newly acquired territory. It set as an example or model for the United government to support for the public education.

Hence the correct option is (A).

i would say b. research typically uses a variety of sources

marginal cost is a microeconomic measure that us to evaluate the extent to which the level of production of a good is sustainable in accounting, that is, to how many quantities the company plans to profit from the production of the good.

the concept of marginal cost is simple, it means the cost of producing one more item. for example, in the case of pies, the marginal cost is the cost of producing one more pie than those that have already been produced.

it is important to understand that productive activity influences marginal cost. the marginal cost of some goods can be very high, while others may be insignificant. for example, the marginal cost of producing an extra plane is very high. already the marginal cost of a water company to provide 1l more water is derisory.

in the case of pies, the cost involves the inputs, the labor and the fixed cost, which involves the fixed space of the bakery. the level of production initially has the marginal cost decreasing because there is space and manpower available. however, to produce more you have to hire more workers and buy more inputs. if physical space is limited, workers will conflict with places, inputs and their productivity will decrease, meaning there is an optimum point of production for each level of space and manpower. from this point on, the productivity of the workers will be getting smaller because of lack of space, so that the marginal cost of producing one more pie will be increasing. so, although you have not posted the chart, but if you have the answer, you can see that my explanation goes according to the marginal cost curve that will increase from the 4th pie, answer (c).