A stem wall is planned for the support of a large tank. The stem wall measures 8″ thick. It is 36″ tall and has a circumference of 60`. How many cubic yards of concrete are required for this stem wall.(Assume no waste)

A stem wall is planned for the support of a large tank. The stem wall measures 8″ thick. It is 36″ tall and has a circumference of 60`. How many cubic yards of concrete are required for this stem wall.(Assume no waste)