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Question
If Hailey buys 10 shirts at 10% off and each shirt costs s dollars, which expression is NOT equivalent to the situation?
Responses
A 9s9s
B 10s − 0.10(10s)10s − 0.10(10s)
C 10s − 0.10s10s − 0.10s
D 10s − 1s
The correct answer is D) 10s - 1s.
This expression is not equivalent to the situation because it subtracts 1s from the total cost instead of subtracting 0.10s, which represents a 10% discount.