Answer: The original price of the shirt was $32.
Step-by-step explanation:
1. The cost of the shirt during the 15% off sale is $27.20.
2. Then, to solve this problem you can write the following expression, where you can call the original price of the shirt [tex]x[/tex]:
[tex]x-0.15x=27.20[/tex]
3. Now, you must solve for [tex]x[/tex]. Then you obtain the following result:
[tex]0.85x=27.20\\x=\frac{27.20}{0.85}\\x=32[/tex]
4. Therefore, the original price was $32.
