1.

After interchanging + & x and 12 &18, which of the following equations will hold true?

A. (9 + 12) x 18 = 60
B. (18 + 6) x 12 = 90
C. (12 + 18) x 12 = 72
D. (12 + 6) x 18 = 36
Answer» C. (12 + 18) x 12 = 72


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