Answer:
c
Explanation:
The formula for the volume of a square pyramid is 
 . a is your base edge and the h is your height. In this case it would be
. a is your base edge and the h is your height. In this case it would be 
 . when you wokr it out it would be 58.333, or 58 which is c.
. when you wokr it out it would be 58.333, or 58 which is c. 
also you would do 5 x 5 then you would multiply it by 7/3.