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OpenStudy (anonymous):
Write a mathematical expression for: the sum of twice a number n and 20. n/2 + 20 2n + 20 2n - 20 n + 2(20) .
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OpenStudy (anonymous):
|dw:1350324805969:dw|
OpenStudy (anonymous):
Evaluate 3 + 2 • 4.
OpenStudy (anonymous):
|dw:1350324872697:dw|
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