What is the percent decrease when the balance in a bank account goes from $300 to $60? The percent decrease is 20%.
The percent decrease is 25%.
The percent decrease is 80%.

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.