Bloomberg Alimentation Couche-Tard Inc. agreed to buy the gas-station chain CST Brands Inc. for about $3.67 billion, using its biggest-ever acquisition to expand its foothold in Texas and eastern Canada. Couche-Tard will pay $48.53 a share in cash for CST, according to a statement Monday. The offer — valued at about $4.4 billion including debt — represents a 42 …

  Emirates Business British Airways is offering students and teachers travelling overseas for the new school term up to 10 percent discount on advertised fares, one additional piece of checked baggage and flexibility on date changes to ticket bookings. The benefits are currently available for all students and teachers flying in World Traveller with British Airways from the United Arab …

  Bloomberg Teleperformance SA, a French call-center operator, is adding online phone and video translation by acquiring LanguageLine Solutions LLC for $1.52 billion from a U.S. private-equity firm. Paris-based Teleperformance, which has customers in industries including health care, insurance, banking and retail, said in a statement Monday it’s buying LanguageLine of Monterey, California, from Abry Partners and other investors in …