Acertain animal in the zoo has consumed 39 pounds of food in six days. if it continues to eat at the same rate, in how many more days will its total consumption be 91 pounds?

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?