These road signs are on eastbound US Highway-60 in Tempe, Arizona.

The road signs say...

the numbers are: 6 9 3 7 101 4 10 3/4 (1 1/2) (2 1/2) the math is... 4 / log(101 - log(10)) = (1 1/2 + 2 1/2) * (3/4) + (6 / 3) / (9 - 7) * the esign equals the sum of the other two signs more math: 6 * 9 + 3 + 7 = (101 - 4 * 10) + ((1 1/2 + 2 1/2) * 3/4) * the HOV sign equals the sum of the other two signs ...BARS playground... 1 1/2+2 1/2=4; 2 1/2-1 1/2=1; 3/4*4=3; 1-3/4=1/4; sqrt(1/4)=1/2 101-log(10)=100; sqrt(100)=10; log(10)=1; log(100)=2 (9-6)/(7-3)=3/4

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

**Created:** 20 September 2015

This work is licensed under a Creative Commons Attribution 3.0 United States License.