Watch to find the midpoint:
https://www.khanacademy.org/math/geometry/hs-geo-analytic-geometry/hs-geo-distance-and-midpoints/v/midpoint-formula
First you combine the like terms which are the Ws.
And if there's no number in front of the variable (w in this case) it
Answer:
I think 15 cubic meters might be wrong tho
Step-by-step explanation: