Va rog ajutor. pentru incheierea mediilor am nevoie de ex 2 si 4

Ineed someone to me answer my question i have to have this done and knocked out

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 the root(s) of f (x) = (x- 6)2(x + 2)2.