We (family) have been entry denied with B1/B2 valid visa 20 days ago for excess dollar found. Can we apply again same as fresh?

You need to have at least a consultation with an attorney to gain a full understanding of the requirements for a visitor visa, the reasons for travel, and the circumstances of the denial, otherwise applying again will be simply a waste of time and money. A second application will not be "fresh" - they will take account of any facts learned at the time of the first application.