The outside measurement of a rectangular foundation is 28′ by 50′. The foundation wall is 4′ tall and 12″ thick. If the wall is to be formed with 4′ x 8′ sheets of plywood, the minimum number of full sheets of 4′ x 8′ plywood is:

The outside measurement of a rectangular foundation is 28′ by 50′. The foundation wall is 4′ tall and 12″ thick. If the wall is to be formed with 4′ x 8′ sheets of plywood, the minimum number of full sheets of 4′ x 8′ plywood is: