(3x+8)(3x+8) is the answer :))
<span>the answer is 2(19d+17)</span>
The answer I believe is 30
The proportion pop/total = 5/7 is presumed to hold for the next 500 songs.
pop/500 = 5/7
pop = 500*5/7 ≈ 357
357 of the next 500 songs downloaded are expected to be pop songs.