This directional sign is at Sky Harbor International Airport in Phoenix, Arizona.

The directional sign says...

+------------------------+ | P Parking Garage 4 | | clearance 6' - 8'' | | $3.00 per Hour | | $20.00 Daily Maximum | +------------------------+ the numbers are: 4 6 8 3.00 20.00 the math is: 20 / 4 + 6 - 8 = 3 observe... 20 / 4 = 5 5 + 6 = 11 11 - 8 = 3 more math: sqrt(4) x 3 + 6 + 8 = 20 observe... sqrt(4) = 2 2 x 3 = 6 6 + 6 = 12 12 + 8 = 20

**Creator:** Gerald D. Thurman
[gthurman@gmail.com]

**Created:** 13 July 2006

This work is licensed under a Creative Commons License.