A contractor purchases 6 dozen pairs of padded work gloves for $.85.68. She incorrectly calculates the unit price as $14.28 per pair for the expense report. What is the correct unit price? What is the error?

Me its important ! marge runs an ice cream parlor. her speciality is triple chocolate sundaes.she can prepare 1 sundae every 2 minutes, and she earns $1.20 for each sundae she makes . if she just makes sundaes for a single shift of at most 4 hours and at least 2 hours , which function relates her earnings to the number of minutes she works?