Answer:
Step-by-step explanation:
1. if the sub is at 325.8 at it was originally at 275 you have to put the numbers in absolute value. so 325.8 - 275=50.8
the sub went down -50.8 feet to get to 325.8
if the diver dives another 23 feet you have to put the numbers in absolute value and add 325.8 + 23= -348.8 feet underwater
on hour 3 it says that it descends an average of how much he went down in the first 2 hours witch is -73.8
i got -73.8 by adding hours one and two
then you add hour 3 by -348.8
