Which of the following equations represents the axis of symmetry for the parabola shown? (5 points)
y = 10x
x = 10
x = y + 10
y = x + 10

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.