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Each copy of Magazine X is sold either at the cover price of $3.25 per copy or at the subscription price of $1.75 per copy. The average (arithmetic mean) price of the copies of Magazine X that were sold last month was $2.25 per copy.

Quantity A

The number of copies of Magazine X that were sold last month at the subscription price

Quantity B

Twice the number of copies of Magazine X that were sold last month at the cover price




In quadrilateral ABCD shown, what is the value of x?

Give your answer to the nearest 0.1.
What is the greatest prime divisor of $$3^{100}$$- $$3^{97}$$?
Which of the following is the graph of $$|x-5| \leq 2$$?

$$\frac{51!-50!}{50!-49!}$$=
Of the people surveyed about the effectiveness of various treatments for insomnia, 65 percent reported that prescription drugs were effective and 48 percent reported that exercise was effective. If 22 percent of those surveyed reported that prescription drugs were effective but did not report that exercise was effective,what percent of those surveyed reported that exercise was effective but did not report that prescription drugs were effective?
unimpressed----以下哪个翻译最合适?
unfounded ---- 以下哪个选项和单词的意思一致?
objective ----下面哪个选项不是这个单词的同义词?
unassailable ----下面哪个选项不是这个单词的同义词?
champion ----下面哪个选项不是这个单词的同义词?
repudiate ----下面哪个选项不是这个单词的同义词?
valorize ----下面哪个选项不是这个单词的同义词?

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