What factors can directly affect supply? Check all that apply. change in price of a substitute good
availability of materials, labor, and resources
producer’s ability to keep up with demand
competition and substitute goods
changes in consumer spending

Which statement about african americans during the civil war is true? o a. they were granted the vote in the north. o b. they were allowed to attend northern universities. c. they were given deeds to southern plantations. o o d. they enlisted in the union army.