Every week, Keller’s Grocery runs a weekly ad in the newspaper touting its sale prices on a number of products. For example, this week the store is selling cherries for $1.50/pound and boneless chicken breasts for 99 cents/pound. Keller’s sells these products at a below-market price to lure customers into the store in hopes that while they are in the store to buy chicken and cherries, they will also buy other grocery items that have a much higher markup. The store is using: