Point C
Explanation: honestly I’m just giving a wild guess so sorry if it’s wrong
it would be 81, all interior angles should equal 360 and that goes for any closed shape.
To find the volume of a rectangular prism, multiply its 3 dimensions: length x width x height. The volume is expressed in cubic units.
6 = 8f - 2f
6 = 6f
f = 1
there is no leftover as each friend get 1 cup