Complex sentence: Bieber's first full studio release, My World 2.0, was released in March 2010 and debuted at number one and within the top ten of several countries, and was certified platinum in the United States.
Split into simpler sentences: Bieber's first full-length studio album, My World (two point zero), was released in March 2010. It debuted at number one or within the top ten in several countries and was certified platinum in the United States.