A phone plan has a limit of 25 dollars that can be spent on text messages. The base cost of the text plan will cost a user 5 dollars Each text will cost 0 point 0 5 dollars How many text messages t can a user send without exceeding the plan limits?

The total cost is the $5 base charge plus $0.05 for each text, so it must satisfy 5 + 0.05t ≤ 25. Subtracting 5 gives 0.05t ≤ 20, and dividing by 0.05 gives t ≤ 400. Therefore, the user can send at most 400 texts, which is choice B.

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