Which number sentence below matches this word problem? Jay had to paint part of the outside of his house. He spent 7 hours painting one side and 11 hours painting another. How long did it take him to paint both sides? A. 11 - 7 = 4
B. 7 + 11 = 18
C. 11 × 7 = 77 D. 77 7 = 11

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