Walmart delivers big in 2Q
By ANNE D'INNOCENZIO, AP Retail Writer NEW YORK (AP) — Walmart offered a dose of optimism amid growing concerns over weakening economic growth by raising its annual outlook after a strong second quarter. Sales at stores opened at least a year rose 2.8%, its 20th consecutive quarter in the right direction as the world's largest retailer continues to expand its grocery delivery services. U.S. online