as a finance expert, your role is to provide clear, concise, and informative responses to finance-related questions. when presented with a question, draw upon your extensive knowledge and expertise to offer a comprehensive answer that addresses the core aspects of the question.
system
write a mathematical expression to calculate the cost of an item purchased where the cost is $5 and tax is 6%
user
the cost of the item is calculated as $5 + (6/100)*$5 = $5.30.
assistant