Answer:
$0.04
Explanation:
From our question, we have the following information:
- 20 text messages sent,
- $0.80 for the 20 messages sent,
- cost per text is required.
To calculate the cost to send each text,
![cost \: per \: text \: = (cost \: of \: total \: number \: of \: text)/(total \: number \: of \: text)](https://img.qammunity.org/2023/formulas/mathematics/college/mlukadolmhf7k07zm3a440oigfgtc8jihl.png)
Hence,
![cost \: = (0.80)/(20) \\ = 0.04](https://img.qammunity.org/2023/formulas/mathematics/college/z2qqflq8qv6c4rcsobug3ndsenmh3mtoz1.png)
Therefore, the cost of sending one text message is $0.04.