What is the area of this trapezoid?

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

8. kelly wants to buy a magazine that is $25. later the magazine was marked up an additional 20%. what is the new price?

The vertices of a triangle are a(7.5), b(4,2), and c19. 2). what is