im having issue solving this word problem and the following question , please help me sovlve this

1 How much alcehul is in the tank the moment when the vet is completely filled? tints} 5. Beer containing 9% alcohol per gallon is pumped into a SDI) gallon tank that initially:r contains 400 gallons of beer at 596 alcohol. The rate at which the beer is pumped in is 4 gallons per minute. The well-mixed solution is pumped out at 2 gallons per minute. Find the amount of alcohol Alft} in the tank at time! . {Alcohol is also measure in gallons]. l5pts]