Chet needs to buy 4 work shirts, all costing the same amount. after he uses a $25 gift certificate, he can spend no more than $75. write an inequality to find the possible costs for a shirt. identify what your variable represents.

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?