### BARS::School Speed Limit Sign on Old Douglas Road in Bisbee, Arizona

This speed limit sign is on Old Douglas Road in Bisbee, Arizona.

The speed limit sign says...

```+----------------+
|    School      |
| Speed Limit 15 |
|   7am to 4pm   |
|  School Days   |
+----------------+
```
```   the numbers are:  15  7  4

rs42Eval:  (sqrt(4! - 15)! * 7 = 42
rs42Eval:  summation(sqrt(4), 7) + 15 = 42
* 42 is the "Answer to Life, the Universe, and Everything"
* summation(2, 7) = 2+3+4+5+6+7 = 27

rs37Eval:  15 * sqrt(4) + 7 = 37
rs37Eval:  summation(4, 7) + 15 = 37
* Why rs37Eval? 37 Heaven @ http://thirty-seven.org
* summation(4, 7) = 4+5+6+7 = 22

rsCardinalityEval:  sqrt(15 - (7 - 4)!) = 3
number system rsCardinalityEval:  157 / 4 = 3
* There are 3 numbers in this speed limit sign.

number system rsStateEval:  157 * 4 = 48
* Arizona was the 48th state admitted to the Union.

rs420Eval:  4 * 15 * 7 = 420

off-by-one BARSfunc rsAgeEval:  spf(15) * 7 * sqrt(4) = 57 + 1
* RoadHacker was 57 years young when he found this speed limit sign.

off-by-one rs42Eval:  7 * 4 + 15 = 42 - 1
* 42 is the "Answer to Life, the Universe, and Everything"
```

Creator: Gerald Thurman [gthurman@gmail.com]
Created: 22 March 2015 (posted 23 March 2015)