C and be would be the correct formulas
Answer: 
Step-by-step explanation:
Formula: Volume = 
a is the length of the base's edge and h is the height. Since 16 is the length we would square it as it is the length, then we would multiply it by the height which is 20 ft.
<u>Steps: Multiply</u>
Volume = 
= 
= 
~I hope I helped you :)~
Answer:
Step-by-step explanation:
the position of the boat on the waters surface = 0 (zero)
Carmen and Jen's swimming depth. = -15