Abag contains 7 red marbles, 8 blue marbles, and 5 green marbles. mara randomly chose a marble, then she put it back and randomly chose another marble. what is the probability that she chose 2 blue marbles? answers in decimal form .

Type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar.a city water tank holds 20 gallons of water. a technician empties 25% of the tank. how many more gallons of water must be removed from thetank so that it has 5 of the water that it started with: the technician must removemore gallons of water for the tank to have 5 of the water that it started with.