4=(1/2)^× solve for x

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.)

Match each function with its rate of growth or decay

Acd that is originally priced at $15.85 red-tagged for the sale. what is the sale price of the cd