There are twelve hours between 5am and 5pm. To this we need to add [(60 - 39) + 23] minutes, to make a total of 12 hours and 44 minutes.
521 and 523
The ISBN of A Rebel in Time is 0-523-48554-9.
52300%523:= 523 * 100%= 52300%
194 + 329 = 523. Found by subtracting 329 from 523. 523 - 329 = 194.
523 miles
It is 523 times 1 = 523 which is a prime number
523 x 18 = (523 x 10) + (523 x 8)
The distance between Baltimore and Detroit is about 523 road miles.
4t-523 = -519
As a fraction: 0.523 = 523/1000
2x-523 = -521
523