A primary source of anything is a first hand account be it a diary, eye witness account, the person must have experienced it themselves while a secondary the information could have been passed on for example a news paper or memoir on someones life.
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I'm more leaning towards C but it might be D. I'm sorry if I didn't really fjdjdbd
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(1)Treaty of Guadalupe Hidalgo (2)Arizona, California, New Mexico, Texas, Colorado, Nevada and Utah
<span>Al─Khwarizmi wrote an algebra textbook that was the standard for centuries during the golden age of islam :)</span>
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A third of all banks failed. 1 Unemployment rose to 25%, and homelessness increased. 2 Housing prices plummeted 67%, international trade collapsed by 65%, and deflation soared above 10%.
