A tank contains 3000 L of pure water. Brine that contains 25 g of salt per liter of water is pumped into the tank at a rate of 25 L/min. The concentration of salt after t minutes (in grams per liter) is given by the function below. As t , what does the concentration approach?
you have to find g/L
so i thought you plug in 25 for t, but when i did that i just got 3000, which is wrong