What is the ratio of red circles to blue circles

Pick the description of a geometric object that best matches the real world object box for a deck of card

Steve wants to develop a way to find the total cost of any item including sales tax. the sales tax in his city is 6%. his friend jenna writes the expression x + 6x where x is the cost of the item. explain whether her expression is correct based on the situation.

Hello i need with my math homework i don't understand can someone explain how this works