Title: Macintosh.
Question: Through 7/1/13, what percentage of all Ultrabook sales in the U.S. were MacBook Airs?

Title: Software testing.
Question: What are the first three methods mentioned that make up black-box testing??

Title: Child labour.
Question: What community has the most prevalency for child labour?

Title: Philadelphia.
Question:
When was the low point in Philadelphia's population?