A labor crew for placing concrete consists of 1 labor foreman at $25.85 per hour, 1 cement finisher at $28.60 per hour, 5 laborers at $23.25 per hour each, and 1 equipment operator at $31.45 per hour. Such a crew, called a C20 crew, can place 160 cubic yards of concrete per 8-hour day. Determine
(a) The cost per day of labor for the C20 crew,
(b) The cost of the C20 crew per cubic yard of concrete,
(c) The cost to place 250 cubic yards of concrete.