PLEASE HELP! ATTACHMENT IS THE QUESTION!

If f(x)= 3x+6 which of the following is the inverse of f(x)

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then

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?