Math Quiz: NYT Learning Network

Through Math for America, I am part of an on-going collaboration with the New York Times Learning Network.  My latest contribution, a Test Yourself quiz-question, can be found here:

https://learning.blogs.nytimes.com/2012/06/18/test-yourself-math-june-18-2012/

This question focuses on the increasing number of Americans who are collecting Social Security early.  What hourly wage is equivalent to collecting social security benefits?