Well its a because some people read at different pace and some people read an amount of words at an amount of time so a is the answer because of humans reading pace and average.
Explanation: For a square pyramid, the volume can be calculated as follows: Volume = * area of base * height Volume = * side² * height We have: side length = 6 cm height = 9 cm Therefore: Volume = * 36 * 9 = 108 cm ³