Help me please thank you

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.)

Need 50 will mark brainliest answer. find the lengths of all the sides and the measures of the angles.

F(x) = 1/x g(x)=x-4 can you evaluate (g*f)(0) ? why or why not?