Shorts are on sale for 10% off. if kate buys 10 pairs of shorts at s dollars apiece, which expression

Shorts are on sale for 10% off. if kate buys 10 pairs of shorts at s dollars apiece, which expression is not equivalent to the situation stated?

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  1. 10 pairs of short cost 10s (without sale).

    10% =0.1, and 10% off is

    10s - 0.10*10s (B) = 10s -1s (D)

    10s -1s = 9s (A)

    Expression that does not match is (C),

    correct answer is (C).

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