1) Use Green's theorem to calculate the following line integral over the positively oriented closed curve C, where is the boundary of the region enclosed by the curves y = sqr x + 2, y = x and x = 0.
I = integral(xy dx + xy dy)​

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?