You can view your Quotes through Sales tab and set the transaction type as Quotes. Under Status column you'll see if a quote is pending, accepted, applied or closed.
Here's how:
Click on the Sales tab.
Click on All Sales, and next to Batch actions choose Quotes for Type.
Under STATUS column you will see if a quote is pending, accepted, applied or closed.
You can also run a Quotes by Customer report under Reports tab to show a more comprehensive information about the quotes. Here's how to:
Click on the Reports tab.
Under the search column is type in Quotes by Customer.