Concrete can be purchased by the cubic yard. How much will it cost to pour a slab 18 feet by 4 feet by 3 inches for a patio if the concrete costs $33.00 per cubic yard? Round your answer to the nearest whole dollar.
18 ft = 6 yds
4 ft = (4//3) yd
3 in = (1/12) yd
So
6 ( 4/3) (1/12) = 24 / 36 = 2/3 cu yd
(2/3) (33) = $22
