8/11 rounded to the nearest hundredth-pls help mee

Ineed i been stuck on this question since yesterday

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

Will mark name all segments skew to bc