Based on the cost of additional text messages and the cost for the first 250 messages, the number of text messages that Stacey sent was 260 messages.
First find out the extra cost of the messages:
= 13 - 10
= $3
The number of messages sent would be:
= 250 initial messages + Additional messages
= 250 + (3 / 0.3 per message)
= 250 + 10
= 260 messages
Find out more on calculations involving cost per message at https://brainly.com/question/2021001.
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