Mfloor and title now are two companies that install floor tile . Mfloor charges 24$ for 10 tiles and tile now charges 25.85$ for 11 tiles . how much would you save on a room with 121 tiles in it

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?