The regular price of the hat is $22.5
Explanation:
We know that the discount price of a hat is $18, so we need to find the regular price of the hat.
Let:
x: Regular price
So:
[tex]\\ \\ Regular \ price \ - \ percentage \ discount \times Regular \ price =discount \ price \\ \\ x-20\%(x)=18 \\ \\ x-0.20x=18 \\ \\ 0.8x=18 \\ \\ x=\frac{18}{0.8} \\ \\ x=22.5[/tex]
Finally, the regular price of the hat is $22.5
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