A scuba diver descends farther down into the ocean from an initial depth of 14.7 feet below sea level. The scuba diver descends at a constant rate for 412 minutes and reaches a depth no more than 65.1 feet below sea level.
What is the maximum rate, r, that the scuba diver may descend?
r≤17 11/15
r≥17 11/15
r≤11.2
r≥11.2