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【单选题】
Izaak likes to eat pizza and to fish. The more fishing he does the happier he is, up to 8 hours a day. If he shes longer than 8 hours he gets a sore back and is less happy than if he hadn't shed at all. For y less than or equal to 8, his utility function is U (x; y) = x + 4y where x is money spent on pizza and y is hours per day spent fishing. His income is $45 a day and he has no expenses other than pizza. The Bureau of Fisheries has just decided to allow people without fishing licenses to sh only 3 hours a day. But if you buy a fishing license, you can fish as many hours as you wish.How much is Izaak willing pay for a license?
A.
$20
B.
$32
C.
$23
D.
$18
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相关题目：
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降压药
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E.
扩容药
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【单选题】Which choice below is not about your voice when presenting?
A.
Speak clearly and loudly enough for all to hear.
B.
Do not speak in a monotone voice.
C.
Use inflection to emphasize your main points.
D.
Pause at the time when there would normally be punctuation marks.
查看完整题目与答案