Answer:
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The Louisiana Purchase of 1803 brought into the United States about 828,000 square miles of territory from France, thereby doubling the size of the young republic.
Step-by-step explanation:
The ratio is 1:2. If "1" is 18, we need to multiply 18 and 2, or 36.
Hope this helps!
____ is equal to 1.5. You can solve this by dividing both sides of the equation by 6 (doing it on the side with the missing number gets rid of it so it just leaves our mystery number or variable) and 9/6 is 1.5.