1) One cubic millimeter of Mrs. Murphy's blood contains about 5 x10^6 red blood cells. There are about 4.9x10^6 cubic millimeters of blood in her body. Determine approximately how many red blood cells Mrs. Murphy has in her body total.

If there are 12 moths and some have 31 days and others have 30 days how many have 28 days?

Mary used 1/7 of a spool of ribbon to complete 4 projects. she used the same amount of ribbon on each project. how much ribbon did she use on each project?

A33 gram sample of a substance that's used to detect explosives has a k-value of 0.1473. n = noekt no = initial mass (at time t = 0) n = mass at time t k = a positive constant that depends on the substance itself and on the units used to measure time t = time, in days