Answer: The expression for the retail price of a silver chain is 1.4c.
Step-by-step explanation:
Let the amount of jewellery be c dollars.
Rate of mark up = 40%
So, Amount of mark up would be
[tex]\dfrac{40}{100}\times c\\\\=0.4c[/tex]
So, Amount after mark up would be
[tex]c+0.4c\\\\=1.4c[/tex]
Hence, the expression for the retail price of a silver chain is 1.4c.