Which phrase represents the algebraic expression for r + 12?
2 answers:
The answer to your question is D
Answer: D) The sum of a number and twelve
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Explanation:
r = an unknown number
r+12 = sum of the unknown number and 12
The term "sum" refers specifically to the result of an addition problem.
As another example, saying 2+3 = 5 has a sum of 5.
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