Which of the following is NOT one of the correct steps in the solution to the equation 25(z - 4) = 125 OA 2z-8=3 OB. 5^2z-4 -5^3 OC (52)(z-4) = 53 D. All of the options are correct steps in the solution. PLEASE HELP ME

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