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
[tex] x+ \frac{20}{100}x = 1.50
\\
\frac{120x}{100} = 1.50
\\
x = \frac{1.50*100}{120} = 1.25 [/tex]
So the price of the flower in Septembet is $1.25 .
