Which verbal description best describes the expression 0.65x? A) Decrease x by 65%
B) Decrease x by $0.65
C) Decrease x by 35%
D) Increase x by 65%

Jada has a meal in a restaurant she adds up the prices listed on the menu for everything they ordered and gets a subtotal of $42.00. when the check comes, it says they also need to pay $3.99 in sales tax. what percentage of the subtotal is the sales tax