Question

insert commas as needed to separate coordinate adjectives.
for their vacation, manny and sasha rented a small beach bungalow, but the unanticipated fast - approaching hurricane forced them to evacuate and end their vacation early.

Explanation:

Coordinate adjectives are adjectives that modify the same noun and can be joined with "and" or separated by a comma. In the phrase "unanticipated fast - approaching hurricane", "unanticipated" and "fast - approaching" are coordinate adjectives as they both describe the "hurricane" and can be written as "unanticipated and fast - approaching hurricane".

Answer:

For their vacation, Manny and Sasha rented a small beach bungalow, but the unanticipated, fast - approaching hurricane forced them to evacuate and end their vacation early.