well to find the volume you use the equation of V=HxWxL
1/3 = 0.3 recuring 2/5 = 0.4 1/2 = 0.5
12.4 X 9.3· recuring = 115.73 recuring
115.73 recuring X 8.5 = 983.73 recuring.
(if your writing it down put a dot on top of the 2nd 3 to say its recuring)