If the volume of a triangular prism is 140 cubed the base length is 5 and base height is 8 what is the height

Initially 100 milligrams of a radioactive substance was present. after 6 hours the mass had decreased by 4%. if the rate of decay is proportional to the amount of the substance present at time t, find the amount remaining after 24 hours. (round your answer to one decimal place.)

Find the nonpermissible replacement for binthis expression. b2/5b +5

What is the measure of angle 1? a.28 b.152 c.168 d.64