The company you work for has a policy of paying overtime for all hours worked in excess of 40 per week you worked 8 hours each day , monday through thursday, and 10 hours friday how many hours of overtime did you earn

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?