Mathematics, 15.01.2021 17:10 josuep425

Which expression represents "the product of a and b decreased by 9"? A. ab - 9
B. 9 - ab
C. a:b-9
D. a = (b - 9)
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Which expression represents "the product of a and b decreased by 9"? A. ab - 9
B. 9 - ab