if the skating rink was $6 per person and the birthday party will cost $72, how many skaters will be at sami's party? 12 is the answer so now my question is what will be the new cost of the birthday party if each skater receives $2 spending money?

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?