Provide an appropriate response.Which one of the following is an expression? 9(x + 9)
9(x + 9) = 9x + 81
10 ? 1 = 10
23 + 0 = 23
A. 10 ? 1 = 10
B. 9(x + 9) = 9x + 81
C. 9(x + 9)
D. 23 + 0 = 23
Answer: C
Mathematics
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