Therefore, b" is equal to 1 and b=5(25b")=125=$1.25.

因此，b''等于1，则b=5(25b")=125=$1.25.

youdao

This week, Facebook shares traded on SecondMarket passed $50, giving Facebook a total market value of $25b, local media reported.

据当地媒体报道，私有企业股票交易所SecondMarket的数据显示，Facebook的股价本周已经突破50美元，对应的市值达到250亿美元。

youdao

User have downloaded over 25B apps from Google since its introduction in October 2008.

FORBES: Is Google the New 'Think Different?'