Apple sold $4.5 billion worth of bonds late on Monday, its first offering in two years, and said it plans to use proceeds to repurchase stock and repay outstanding debt. The offering included $1.5 billion of three-year notes and $1 billion each of five, seven- and 10-year notes. Apple has $8 billion in debt maturing from May through November. Eight other issuers in the investment-grade primary market also kicked off an unusually active week with an estimated total of nearly $35 billion of new