Ah... any mod delete my account !!​

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.)

5x + 2 = 12 solve the following equation. then place the correct number in the box provided.

The volume of a cube is 8 in to the 3rd power. how long is each side?