Data:
Weekdays: m dollars/hour
Weekend: 1.2m dollars/hour
![9m+3(1.2)m](https://img.qammunity.org/2023/formulas/mathematics/high-school/sb47uxdpqv4zobai4jymp448mllj3tlanz.png)
If (1.2m dollars/hour) is the cost in weekends, and (m dollars/hour) is the cost in weekdays.
Then, in the math expression the 9m represents the cost of the flying lessons Mayra take in weekdays.