Which of the following was hitler’s first violation of the treaty of versailles

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

What features of the electoral system support the existence of a two party system and analyze one of these features and explain its role

31/3: which equation has the solutions x =?