Answer:
The expression that represent the retail price of the silver chain is;
[tex]1.57c[/tex]Explanation:
Given that c represent the cost price of the chain.
And they sell at a 57% markup. that means the sell at 57% more than the cost price.
Which is;
[tex]\begin{gathered} (1+\frac{57}{100})\times c \\ =(1+0.57)c \\ =1.57c \end{gathered}[/tex]The expression that represent the retail price of the silver chain is;
[tex]1.57c[/tex]