Answer:
So the greatest common factor 16 and 100 is 4.
When given the scale factor and the factored size of the object, to find the original size, divide the factored size by the scale factor:
0.8 / 3.1 = 0.258 inches
Sorry about my first answer then it would 20% because if you take 30 and divide 20% you'll get 6 so again sorry I was wrong 20 percent though is right.
Alright, 7% of 59.50 is 4.17
59.50 + 4.17 is 63.67
(sorry, I misread your question last time)