Answer:
![m \geq 1166](https://img.qammunity.org/2021/formulas/mathematics/college/eg6rdhco24w009fqbq35h039itsgc7zoae.png)
Explanation:
Given
![Base\ Amount = \$24](https://img.qammunity.org/2021/formulas/mathematics/college/ih7y4si0kaswg6wbblx55gmct0t20pb44n.png)
per minute
![Least\ Monthly\ Charges = \$93.96](https://img.qammunity.org/2021/formulas/mathematics/college/jm3161ipuj7pj43jqi7bkyrfhddg5h2twa.png)
Required
Determine the possible number of minutes
If for 1 minute, he's charged $0.06;
He'll be charged $0.06m for m minutes
Representing this as an inequality, we have:
![Base\ Amount + m\ Charges \geq\ Least\ Monthly\ Charges](https://img.qammunity.org/2021/formulas/mathematics/college/i5nem373a30rjpc0r517msaz12yymi9sqo.png)
![24 + 0.06m \geq 93.96](https://img.qammunity.org/2021/formulas/mathematics/college/qutcv3vduxcazgdm1vpms250thkpm0lsbq.png)
Solve for 0.06m
![0.06m \geq 93.96 - 24](https://img.qammunity.org/2021/formulas/mathematics/college/5ddo2ygn5jdpau38azuwv6crjmz88uwjk3.png)
![0.06m \geq 69.96](https://img.qammunity.org/2021/formulas/mathematics/college/k1o1jq4b72z40lm5rwbk66q95oxno16co6.png)
Solve for m
![m \geq 69.96/0.06](https://img.qammunity.org/2021/formulas/mathematics/college/ellmy1vw74cky99a875qvys4f0f4vab2mj.png)
![m \geq 1166](https://img.qammunity.org/2021/formulas/mathematics/college/eg6rdhco24w009fqbq35h039itsgc7zoae.png)
This implies that, he's charged for at least 1166 minutes