Which two countries allied to invade poland

Profits are maximized when marginal revenue and marginal costs are a. set c. equal b. less than market price d. greater than market price

Why were presidents andrew jackson and martin van buren unwilling to annex texas? a. they did not want texas to be admitted to the union as a slave state. b. they feared that the annexation of texas as a slave state would lead to political problems within the union. c. they thought that texas was too large to be admitted to the union as one state. d. they did not believe in the idea of manifest destiny.

Why is the treaty of paris (1763) important to the age of discovery/exploration?