the selling price is $ 91
Explanation
to solve this we can use a rule of three
let x represents the selling price
hence
if
[tex]\begin{gathered} 100\text{ \%}\Rightarrow\text{ \$ 65} \\ \text{then} \\ 140\text{ \%}\Rightarrow\text{ x} \end{gathered}[/tex]hence
the proportion is
[tex]\frac{100}{65}=\frac{140}{x}[/tex]solve for x
[tex]\begin{gathered} \frac{100}{65}=\frac{140}{x} \\ 100x=140\cdot65 \\ x=\frac{140\cdot65}{100} \\ x=91 \end{gathered}[/tex]therefore, the selling price is $ 91
