4) From 11:00 AM to 4 PM, a whale's elevation changed from -60 meters to-105
meters. If the whale's elevation continues changing at a constant rate, at what time
was the whale's elevation -213 meters?
Step-by-step explanation: It sinks 45 metres every time, so you would keep adding 45 until you got to 195, which would need 18 to finish. 18 would equate to around 1.5 hours, so around 3:30 am ish.
