original price is $480
Explanation:
Let the original price = y
[tex]\begin{gathered} 28\text{ \% of original price = \$}134.40 \\ 28\text{ = 0.28} \\ 0.28\text{ }\times\text{ original price = \$}134.40 \\ 0.28(y)\text{ = }134.40 \end{gathered}[/tex][tex]\begin{gathered} \text{divide through by 0.28:} \\ y\text{ = }\frac{134.4}{0.28} \\ y\text{ = 480} \end{gathered}[/tex]
Hence, the original price is $480
