Troy’s canoe is 18 feet long. ariel’s canoe is the length of troy’s canoe.

what is the length of ariel’s canoe?
express your answer in simplest form

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?

An octagonal prism has jow many lateral faces?

Study results indicate that the mean length of time people spend on a bus in a city is between 21.2 min and 24.5 min what is the study margin of the error?