Answer:
A . 9% compounded monthly
Step-by-step explanation:
<em>because</em><em> </em> 9% × 31 ( 31 is number of days in month ) = 2. 79
0.25
25 feet per minute
in 10 minutes
25ft*10=250ft
the diver is 250+200=450
the diver was at 450 below the sea level