Dil flows into a tank according to the rate F(t) _ _ +1 get , and at the same time empties out at the rate Ent)= In(t+ 7) t+2 , with both F(t) and E(t) measured in gallons per minute. How much oil, to the nearest gallon, is in the tank at time t = 12 minutes. You must show your setup but can use your calculator for all evaluations. (10 points)