Which of the following alternatives has a relevant cost difference? 1 point A mixer is sold online for $100 with a $25 shipping fee and is sold in a local store for $125. A mixer sold online and in a local store are the same price. A mixer sold in a local store includes extra attachments at the same price that the m xer is available online. Amixer sold at a local store is priced $15 less than the same mixer available online with free shipping