00444    a2200169   4500020001500000082001600015100002600031245002500057250001200082260005100094300002100145650003700166650002300203650001500226700001600241700001700257  a0070537267  a513.93bROS  aRosenberg, R. Robert   aBusiness mathematics  a9th ed.  aNew YorkbMcGraw-Hill Book Companyc1982g1958  aviii,552p.c24cm  aNatural sciences and mathematics  aRapid calculations  aArithmetic  aPoe, Roy W.  aLewis, Harry