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if hailey buys 10 shirts at 10% off and each shirt costs s dollars, which expression is not equivalent to the situation?

a) 9s
b) 10s − 0.10(10s)
c) 10s − 0.10s
d) 10s − 1s

10s - 0.10s is not equivalent to given situation.

C is correct.

Step-by-step explanation:

Hailey buys 10 shirts at 10% off

Cost of each short = $s

Total cost for 10 shirts = 10s

Discount Amount = 10% of 10s  or  0.10(10s)

Amount to be paid = Amount of 10 shorts - Discount Value

                                = 10s - 0.10(10s)

                               = 10s - 1s

                               = 9s

In calculation steps we can see which are from option.

A, B and D are the steps of calculation.

Therefore, They are equivalent equation except C

Hence, Only C is not equivalent to the situation.

step-by-step explan mxfcg'k; uafwgzfgjhklhgation: