Drag the tiles to the boxes to form correct pairs, simplify or factor each expression and then match the equivalent expression, please help asap

Question 5 spring semester final exam math evaluate

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

Determine which postulate or theorem can be used to prove that lmn =nmo