Answer:
-7
Step-by-step explanation:
16-23=-7 because 23 is bigger than 16 so its going to end in a negative.
well Y is the amount of water so Y is 600,000 and X is amount of time so it should say something like 600,000x meaning 600,000 water in x minutes. answer is B i think

Therefore, the answer is the first choice.
720 degrees = 12.566 radians