African americans were allowed to vote in the united states when a. congress declared southern voter eligibility laws illegal. b. congress passed the fifteenth amendment. c. abraham lincoln was elected president in 1860.

Identify the example of when situation and time are key to assessing risk of harm in a research study: a study on the efficacy of a behavioral intervention for smoking cessation involves both adults and teenagersasking women if they have had an abortionresearch on the prevalence of hiv-infected individuals in communitiesa survey about sexually transmitted diseases

After having your fifteenth candy bar we can assess that you would have? a. negative utility b. high utility c. low utility d. a sixteenth candy bar

Do you think the united states experiences amalgamation, assimilation, or pluralism? why?