Since Density = mass/ volume (d = m / v), and assuming the 15 fish weigh 1 gram each - if weight of each fish isn't given - (making that a total of 15 grams),
D = m / v
0.3 = 15 / v
v = 15 / 0.3 = 50 ft cubed
Hope this answers your question correctly :)
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<h3>Answer:</h3>
5/6
<h3>Explanation:</h3>
There are 6 half-hours between 9 and 12. You will be there for 5 of them. The probability you will be there is 5/6.
The greatest common factor is 4r so
4r(d-4)
7/12 because it would come out to be 21/36, and the simplified version of that is 7/12<span />