Matthew purchased a desk that was on sale for 45% off the original price of 480$.If the sales tax was 8%( of the sale price),how much did Matthew spend on the desk?

At a local museum, the total price for one adult and one child is $11. mrs. smith paid for herself and her three children. she spent $19. record the system of equations to be solved and then find the price of an adult and child ticket using either elimination or substitution.