Answer:
Explanation:
A submerisible can dive at a rate of 245 ft per min => the rate of the depth to the amount of time is 245:1
45 seconds = 3/4 minutes
We have : 245 : 1 = (245:4/3) : (1:4/3) = 183.75 : 3/4
So, in 45 seconds the submersible will be 183.75 feet below sea level.