Pls answer this is due today its science. I give brainliest

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?

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

The sum of these consecutive integers is equal to 9 less than 4 times the least of the integer. find the three integers