Plzz help mathh love yall

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

How do your peer relationships affect your overall health status? what can you do to improve your peer relationships?

Which number line correctly shows 0.8 + 0.3?