To solve the problem, we first interpret the given inequality:
\[ 750C + 450D > 9000 \]
Here, \(750\) is the number of comments for each cat video \(C\), and \(450\) is the number of comments for each dog video \(D\).
Next, we can check if Goku can achieve his goal by uploading \(8\) cat videos and \(7\) dog videos:
Substituting \(C = 8\) and \(D = 7\) into the inequality yields:
\[ 750(8) + 450(7) \]
Calculating \(750(8)\):
\[ 750 \times 8 = 6000 \]
Calculating \(450(7)\):
\[ 450 \times 7 = 3150 \]
Now, adding these two results together:
\[ 6000 + 3150 = 9150 \]
Now, we check the inequality:
\[ 9150 > 9000 \]
Since \(9150\) is greater than \(9000\), Goku does achieve his goal.
Therefore, the answer is:
(Choice A) Yes.