Determine the area of the shaded sector. use 3.14 for pie. round your answer to the nearest tenth

Find the solution of system of equation y= x-4 y=4x+2

Fredrick designed an experiment in which he spun a spinner 20 times and recorded the results of each spin

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?