Please help it’s due today

Find the nonpermissible replacement for binthis expression.b2/5b +5

Rewrite the following quadratic functions in intercept or factored form. show your work. y = 5x^2 + 10x

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.