A box contains 7 blue socks, 13 yellow socks and 5 green socks. What is the probability of choosing a green sock at random? 1/5

1/7

5/21

5/20

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.