Answer: Leonhard Euler
Explanation: Although Albert Einstein perfected pie, It is widely acknowledged that Leonhard Euler makes it first.
It prevented the settlers from moving West of the Appalachian Mountains, hope this helps!!
<span>D. Monopolies shut out competition
Monopolies are prevented because of the Sherman Antitrust Act of 1890, which regulates and takes apart monopolies, as well as protecting small business owners from collapsing and consumers from high prices.
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American Troops..............
D. concert at red rocks! since from the chart it shows they are only having that in Denver. (: hope this helps!!
