A flower store sells rose and lili. Profit of rose is 20% of its revenue, profit of lili is 30% of its revenue, total profit of rose and lili is 24% of the total revenue, which is $15000. What's rose's revenue?
现在脑子一片空白，我看看能不能回忆起别的题，会继续补上来。
AA是frozen food processing and color film processing那道，应该有人提过了。 AI是schools should teach academic skills, not ethical and social values。