Finleys’s pumpkin had a mass of 6.5kg before he craved it. after craving it, the pumpkin had a mass of 3.9kg. what was the percent decease in the mass.

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.)

The marriott family bought a new apartment three years ago for $65,000. the apartment is now worth $86,515. assuming a steady rate of growth, what was the yearly rate of appreciation? what is the percent of the yearly rate of appreciation?

How do you find the circumfrance of a circle?