What did a food surplus lead to

What statement best describes how the us constitution affects the separation of powers in the federal government

Complete the square for 3x2 - 12x = 9.

Which source would best a historian understand the effect of the great chicago fire on families? a. a biography of a chicago family displaced by the fire b. a letter from a grandmother in new york to her family in chicago c. a newspaper editorial about families who were displaced d. an oral history dictated by an adolescent who fled the fire