Factor 64a^3 -8b^3 Explain all steps.

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.)

Using elimination, what is -4x+2y=-12 4x+8y=-24

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