at the post office 45% of packages ship as priorty mail if 160 packages are shipped today, how many will NOT go as priorty mail. IF YOU CAN HELP I WOULD GREATLY APPRECIATE IT :)))

International calls require the use of a country code. many country codes a 3-digit numbers. country codes do not begin with a 0 or 1. there are no restrictions on the second and third digits. how many different 3-digit country codes are possible?

What three-dimensional solid have 6 rectangular faces, 2 equal bases that are not rectangles and 18 edges

What is the angle measure, or angle of depression, between this bird and the bird watcher?