179 AND 181, THATS RIGHT BOIII
165
5x5= 25
12x12=144
25+144= 165
(f-g)(x) = x²+6x - (7-x)
(f-g)(x) = x² + 6x - 7 + x
(f-g)(x) = x² + 7x - 7
(f-g)(9) = 9² + 7*9 - 7
(f-g)(9) = 81 + 63 - 7
(f-g)(9) = 137
You can see that there are 6 rock CDs, over a total of
So, the ratio of rock CDs over the total number of CDs is
Which is 15%.
So, yes, the answer is A