In the question it is given that,
The students at Midtown Middle school sold flowers as a fundraiser in September and October. In October, they charged $1.50 for each flower
And the October price was a 20% increase of the September price.
Let the price of the flower in October be $x
So we have
![image](https://img.qammunity.org/2019/formulas/mathematics/middle-school/rwj8wgqiq6ukwhaze4hyf15tlakmlko11q.png)
So the price of the flower in Septembet is $1.25 .