A store sells peanuts at $1.62 per pound and raisins at $1.82 per pound. The owner decided to make a fifteen pound mixture of the two and sell it for $1.66 per pound. How many pounds of peanuts should be in the mixture?

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?