Solve (x-4)^2=5 pls help me

Which of the following is the result of expanding

What is the approximate value of  x  in the equation below.–3.396–0.7080.3040.955

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.