At norma's discount superstore, all sweaters are on sale for 20% off the regular price.
part A: Damien has a coupon for an additional 20% off the discounted price. How much will he pay for a sweater that regularly cost $45?
Part B:The following week , all sweaters are put on clearance at 40% off the regular price. Would Damien get a better deal by waiting for this sale? Justify your response.