Stephen and Rocco each have apps on their phones.

• The number of apps on Stephen’s phone can be represented by x.
• The number of apps on Rocco’s phone is 4 times the number of apps on Stephen’s phone.
• The total number of apps on both boys’ phones is at least 45.
What is the solution set for x, the number of apps on Stephen’s phone?
Responses
A x ≥ -9
B x ≤ 9
C x ≥ 9
D x ≤ -9

1 answer

C) x ≥ 9

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