Paper × 841 mm). A1 is half the size of a sheet of A0 (i.e., 594 mm × 841 mm), such that two sheets of A1 placed side by side are equal to one sheet of A0. A2 is half the size of a sheet of A1, and so forth. Common sizes used in the office and the home are A4 and A3 (A3 is the size of two A4 sheets). The density of paper ranges from for tissue paper to for some speciality paper. Printing paper is about . Paper may be classified into seven categories: Some paper types include:
How Can I Be Sure of a trumpet, bass, piano, drums, and strings, giving the feeling of cabaret music as well as a concertina, chosen to add the feel of a French café. The song's musical styles include blue-eyed soul and pop. The song came out of the experience with transcendental meditation that the Rascals were involved in. "How Can I Be Sure" peaked at #4 on the Hot 100 in "Billboard" in October 1967, ranking as the most successful (Young) Rascals' hit featuring a lead vocal by Eddie Brigati. The single's B-side: "I'm So Happy Now" (also included on the "Groovin"' album), was written