How many nails are in a 3.00 lb container if one dozen nails have a mass of 0.225 lb? View Available Hint(s) How many nails are in a 3.00 lb container if one dozen nails have a mass of 0.225 lb? 36 nails 160 nails I would add a decimal after the number(160.) to show three sigfigs. 13.3 (or 13) nails 53.3 (or 53) nails