There are 1024 participants in a one-on-one basketball tournament. Each round eliminates half of the participants. 1. write a formula to model the number of participants remaining after t rounds?
2. Using the formula how many participants remain after 9 rounds?

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?

Complete the solution of the equation. find the value of y when x equals to 6 4x+y=20

Carlos spent 1 1/4 hours doing his math homework he spent 1/4 of his time practicing his multiplication facts how many hours to carlos been practicing his multiplication facts