Ashley and Liam both have playlist on their music apps. The number of playlists on Ashley's app can be represented by X. The number of playlists on Liam's app is 4 times the number of playlists on Ashley's app. The total number of playlists on both their apps is at least 45. What is the solution set for x, representing the number of playlists on Ashley's app? (1 point)
A. x ≤ -9
B. x ≥ -9
C. x ≥ 9
D. x ≤ 9
Let X represent the number of playlists on Ashley's app.
The number of playlists on Liam's app is 4*X.
The total number of playlists on both their apps is X + 4*X = 5*X.
We know that the total number of playlists is at least 45.
Therefore, 5*X ≥ 45.
Dividing both sides of the inequality by 5, we have X ≥ 9.
So the solution set for x is x ≥ 9.
Therefore, the answer is C. x ≥ 9.