The manufacturing cost of a cell phone was $124 cellars first marked up the cost by 20% sales were poor , so sellers decreased the mark up to 15% calculate the old a new price

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?