Samuel orders four dvds from an online music store. each dvd costs $9.99. he has a 20% discount code , and sales tax is $6.75% . what is the total of his older?

Two angles are complementary. the large angle is 36 more than the smaller angle. what is the measure of the large angle?

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. after tax the total is 45.99. what percentage of the subtotal is the total?

How many solutions does the nonlinear system of equations graphed below have? a. one b. zero c. four d. two