How do you fine the net iconic equation.

Aflute is on sale for 20% off. including the discount and 8% tax, the sales price is $216.

Florence price's brownies and more sells all types of cookies and pastries. on tuesdays, they markdown all brownies 75% to a sale of $1.50 a dozen. find the selling price and the markdown of a dozen brownies.

Find the distance between the point (-3,-4), and (see the picture below)