* Wendy’s International Inc.'s Tom Mueller, who served as president and chief operating officer since 2000, resigned after the hamburger chain posted its smallest quarterly sales gain in six years in July. Chief Executive Jack Schuessler will take over for Mueller on an interim basis.
* Liberty Media Corp. canceled an agreement to sell as many as 19 million shares it holds in Rupert Murdoch’s News Corp. A contract terminated Friday required Liberty to deliver the shares to an unnamed financial institution in exchange for about $303.6 million, Englewood, Colo.-based Liberty said.
* Microsoft Corp. said it had acquired Alacris Inc. to expand its identity software business. Terms were not disclosed.
* Intel Corp. will open a software development center in Argentina, its third outside the U.S.