The answer would be 12 students. 8+4+6+3=21.
84 divided by 21 would = 4.
3 students times 4 = 12 students
60 mph = 1 mile per minute
10:20 AM -> 1:00 PM = 2 hours and 40 minutes
2 hours 40 minutes = 160 minutes
Boston -> Stamford = 160 miles
Each dive goes further down, so it represents -50 ft (not positive which would represnt going up).
y= -125-50x
We know that there are 3 dives so plug that in for x
y= -125-50(3)
y= -125-150
y= -275
Final answer: -275 ft