Using the completing-the-square method, rewrite f(x) = x^2 + 10x + 7 in vertex form. answers provided f(x) = (x + 5)^2 − 18 f(x) = (x + 10)^2 + 25 f(x) = (x + 5)^2 + 7 f(x) = (x + 5)^2

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?