The local zoo is filling two water tanks for the elephant exhibit. One water tank contains 34 gal of water and is filled at a constant rate of 4 gal/h. The second water tank contains 30 gal of water and is filled at a constant rate of 2 gal/h. What are the constraints on the system? Explain. Let x = the number of hours the tanks are filling and let y = the number of gallons in the tank. Question 16 options: