You invested $12,000 and earned 7.5% interest, which was compunded continuously. If you had $23,568.40 at the end of the investment, how long was the investment for?

What is the order of magnitude for the number of liters in a large bottle of soda served at a party

The number if marbles of different colors stored in a hat is listed below: 4 red marbles 10 green marbles 7 blue marbles. without looking in the hat, dan takes out a marble at random. he replaces the marble and then takes out another marble from the hat. what is the probability that dan takes out a blue marble in both draws?

The two square pyramids are similar. find the total volume of both pyramids if the ratio of their surface areas is 9/16