Asubmarine dives 300 feet every 2 minutes, and 6,750 feet every 45 minutes. find the constant rate at which the submarine dives. give your answer in feet per minute and in feet per hour

Okay this may seem harder but its simple.
first 300 would be your foot and 2 would be the minute
divide it to get 150 ft per minute
to get per hour, just multiply 150 by 60 (since in a hour there are 60 minutes)