Debra is thinking about going to Disneyland with her friend. Debra is willing t...
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Debra is thinking about going to Disneyland with her friend. Debra is willing to pay HK$X to go to Disneyland. A ticket to Disneyland costs HK$428 and she will have to cancel her part-time job that pays HK$449. Normally, she would be unwilling to do the part-time job for less than HK$268. (Debra views the unpleasantness of the part-time job as an offset against her salary.) Debra will decide to go to Disneyland if and only if X is larger than or equal to
(In decimal numbers, with two decimal places, please.)
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