Yahoo reports lackluster results as sale looms

(Reuters) - Yahoo Inc's quarterly earnings fell short of Wall Street expectations on Monday in what may be the company's last financial report before it sells its core business. Yahoo reported adjusted earnings of 9 cents per share, short of the 10 cents that analysts expected. Revenue in the company's emerging businesses, which Chief Executive Officer Marissa Mayer calls Mavens - mobile, video, native and social advertising - showed some life, rising 25.7 percent to $504 million in the second q