What do u mean by ozone layer​

Graph the equationy=x^2 -[tex]y = x^{2} - 2[/tex]

Typically a point in a three dimensional cartesian coordinate system is represented by which of the following answers in the picture !

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?