Gave African-American or Black men the right to vote. 15th amendment
ended slavery in the United States. 13th amendment.
gave African-Americans or Blacks United States citizenship. 14th amendment
Reconstruction period where Congress took responsibility
for bringing the South back into the Union. Congressional reconstruction.
Ok so let me explain this. <span>In the library of congress system of classifying books, every book receives a classification number that starts with 1-3 letters. Those letters give you a general idea of topic.</span><span> The "Teaching New Math" book It's in the Q's for sciences, and more specifically QA's under math. So the answer you will be looking for is QA. Hope this can help you</span>
Answer: SAMPLE.
Explanation: He obviously cannot study every 12th grader, so instead he will select a smaller SAMPLE of seniors to study.
Sample in research methodology is defined as a subset of a population selected for measurement, observation or questioning, to provide statistical information about the population. A sample is referred to as an unbiased estimator of a population.
