Answer: The Civil War started on April 12, 1861 and ended on April 9, 1865. The war erupted when Confederated bombarded Union troops at Fort Sumter; the war had several smaller battles involved and ended four years later.
Answer:
Samuel Morse and Alfred Vail
Explanation:
Please find attached the figure with the complete question including the histogram
Answer:

Explanation:
You must understand the <em>histogram.</em>
The horizontal axis shows the <em>weights in pounds</em> measured using the central points of the intervals. The intervals are supposed to be [105,115], [115,125], [125,130], . . .
The height of the bars represents the frequencies or number of <em>members </em>for each interval. You can read the height of each bar on the vertical axis.
Thus, you find the number of members for each interval:
- first interval: 5 members
- second interval: 4 members
- third interval: 2 members
- fourth interval (blank): 0 members
- fifth interval: 5 members
- sixth interval (blank): 0 members
- seventh interval: 4 members
Total: 5 + 4 + 2 + 0 + 5 + 0 + 4 = 20 members ← answer
B, because they are trying to state that they are an example of racial tolerance.