What is the domain of the function y = StartRoot x EndRoot + 4?
A. Negative infinity less-than x less-than infinity
B. Negative 4 less-than-or-equal-to x less-than infinity
C. 0 less-than-or-equal-to x less-than infinity
D. 4 less-than-or-equal-to x less-than infinity

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?