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