Cell Phone Antennas From December 2006 to December 2007,
Chapter 1, Problem 1.494(choose chapter or problem)
In Exercises 21–36, write an equation for the problem and solve the problem.
Cell Phone Antennas From December 2006 to December 2007, the number of cell phone antennas in the United States grew from 195,613 to 213,299. What was the percentage increase in U.S. cell phone antennas in that one-year period? (Source: CTIA, quoted in The World Almanac and Book of Facts 2009)
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