Is -1/4y + 2 1/4y + 2 - y equivalent to y + 2? Explain why or why not

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.

Find y to the nearest hundreds place

30 points if you answer all 3 questions with work!