8<em> times (</em> 2<em> plus</em> 1 ) = 24
Answer: $2.50
Step-by-step explanation: divide 10 and 4 because there are 4 quarts in a gallon.
You can use Euler's Polyherdron Formula as seen here;
https://plus.maths.org/content/eulers-polyhedron-formula
The number of vertices minus the number of edges plus the number of Faces will equal 2.
V - E + F = 2
V - 36 + 25 = 2
V = 13
