Answer:
(0.5b+20b)*3b=c
Step-by-step explanation:
The answer is A.
A polyhedron is a three-dimensional solid made up of polygons. It has flat faces, straight edges, and vertices. For example, a cube, prism, or pyramid are polyhedrons.
Where is the question
20.22 miles
If 10 laps is 6.74 then 30 laps is 3*6.74 which is 20.22