Can't figure this HW out, please solve with details! thanks!

Consider a well- mixed tank with a water steady flow rate F of 200 L/min. The volume of water in the tank is 1000L. The inlet water temperature of 60C. The system is at steady state with heat input sufficient to heat the outlet water temperature to 80 C. A) Determine the response of the outlet tank temperature to a step change in the inlet temperature from 60C to 70C B) Determine the response of the outlet tank temperature to a step increase in the heat input of 42 kW. C) Determine the response of the outlet tank temperature to a simultaneous step change in the inlet temperature from 60C to 70C and a step increase in the heat input of 42 kW. TL Heat input