Today's my birthday! Can you guys help? I want to go see my grandma that I haven’t seen in 5 years but I need to finish this to be able to go, please help? 1. At what rate is the amount of water in the tank changing? Use a signed number, and include the unit of measurement in your answer.

2. How many more minutes will it take for the tank drain completely? Explain or show your reasoning.

3. How many minutes before Jaila arrived was the water tank completely full? Explain or show your reasoning.