You are probably familiar with the coupons from bed, bath, and beyond that come in the mail, and never expire (if you didn't know that, now you do! it is they can come in two forms: 20% off one regardless of price, let's say you are single item. you enter the store with one of each coupon in hand. a) suppose the item you select costs $75 before any discounts. calculate the final price if you use the 20% coupon. b) for the same $75 item, calculate the final cost of the $5 coupon is single item, or $5 off a purchase of $15 or more. for simplicity sake, going to bed, bath, and beyond and you wish to purchase one used. c) considering the final prices in (a) and (b), which coupon will give the lower final price? d) repeat (a), (b), and (c) for a $17 item. e) for what price does the 20% coupon give the same discount as the $5 coupon? be sure to show your support with mathematical equations. showing an answer works without showing how you got that answer will earn no credit. f) write a sentence or two that describes the cases in which a "percent off" coupon would yield a better buy than a flat "dollar off" coupon. use what you have done in this problem so far to guide you.