Pretty sure it would be the 1st, 2nd, and 4th shape.
V = l x w x h
96 = l x w x 8
divide both sides by 8
12 = l x w
the rectangular prisms other dimensions would be any positive combination of numbers that multiplies to 12. <span />
If 4 is 100-84=16 % of his workout, 4 is 16/100 or 4/25 of his workout. If 4=4x/25, where x is his workout length, dividing by 4 and multiplying by 25 gives x=25, so Dave must run 25 laps total.
