WASHINGTON (AP) — The U.S. economy slowed in the final three months of 2014, but a burst in consumer spending and the prospect of continued low energy prices are bolstering confidence that growth will strengthen this year. The economy, as measured by the gross domestic product, grew at a 2.6 percent annual rate in the October-December period, the government said Friday. Though business investment, government spending and trade weakened, consumers signaled rising confidence by stepping up their spending at the fastest rate in nearly nine years. The company, which raised $105 million in its initial public offering, feeds into investors' growing appetite for restaurants that are quick but also serve food consumers think is healthier or fresher than what a fast-food chain offers. Greece's five-day-old radical left government insists it will honor pre-election promises to seek a cut on most of the country's rescue debt and scrap painful budget measures that were demanded in exchange for the loans. Mattel's fourth-quarter earnings release Friday drilled down into the details of a weak performance that led to the resignation of its chairman and CEO. About 2 percent of U.S.