The Garden Wall A homeowner is going to build the raised bed garden shown in the plan, against an
existing garden wall. The homeowner will build the new wall by stacking concrete blocks
without mortar, and then fill in the walled space with garden soil. The concrete blocks have
dimensions 8 inches x 8 inches x-T6 inches. The wall will be capped by capstones that have
dimensions 8 inches x 2 inches x 16 inches. Concrete blocks cost $1.50 each, capstones
cost $1.00 each, and garden soil costs $36 per cubic yard. The homeowner will do all the
work and will buy materials. How much will they cost?