Gallons of Antifreeze
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How many gallons of a 70%antifreeze solution must be mixed with 70 gallons of 10% antifreeze to get a mixture that is 60% Strength Gallons of
antifreeze?

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?