A store is having a sale. Each customer recieves either a 15% discounton purchaaes under $100 or 20% discount on purchases of $100 or more. Kelly is purchasing some clothes for $96.60 befire the discount.She decides to buy the fewest packs of gum that will increase her purchase to over $100. The price of each gum pack is $0.79. After the discount, how much less will kelly pay by purchasing the clothes and the g instead of purchasing only the clothes? (Assume there is no sales tax to consider.)