A water tank already contains 55 gallons of water when Baxter begins to fill it. Water flows into the tank at a rate of 8 gallons per minute. How long will it take until the tank has 135 gallons of water? (Enter your number answer only.

it would take 5 hours i think idk i'm not that good at math.can you me with my questions i need asap.

hello,

as we don't know if g(x) is continue,

answer b

f(x)=2x²-8x+1=2(x²-4x+4)+1-8=2(x-2)²-7

vertex is (2,-7) ( a minimum since coefficient of x² is > 0)

a. positive: 2 or 0; negative : 2 or 0; complex: 4or2or0

(f+g)(x) = 3^x+10x+4x-2

      =3^x +14x-2

choice b