y contains 90 gallons of water into which 5 pounds of sugar have been mixed. A tap will open pouring 10 gal lons per minute of water into the tank at the same time sugar is poured into the tank at a rate of 3 poun ds per minute. The concentration (pounds per gallon) of sugar in the tank after t minutes is given by the function 5+m C(t) \" 90 + 10 1 . What will the concentration be in 15 minutes? (Enter your answer rounded correctly to three decimal places, and select the correct units.) la C(15): C) 2. What is the horizontal asymptote of the graph of C(t)? y S (Enter your answer rounded correctly to three decimal places.) 3 Interpret this fact in the context of the problem: 0 Inititially, the concentration is 0.3000 pounds per gallon O Inititially, there are 0.3000 pounds of sugar in the tank O Over time the concentration settles on 0.3000 pounds per gallon 0 Over time the amount of sugar settles on 0.3000 pounds