Given:
Cost of the item is $500.
Tax offer percentage is 7%.
The objective is to find the offer amount.
Consider the offer amount as x.
Then, the value of x can be calculated as 7% of total cost of the item.
[tex]\begin{gathered} \frac{7}{100}(500)=x \\ \frac{3500}{100}=x \\ x=35 \end{gathered}[/tex]Thus, the money saved for this offer is $35.
Hence, option (C) is the correct answer.