3.18.3 Can you answer these questions?

3.18.3.1 How to Inset a legend in GeoGraphics with Scaled LegendMarkerSize?
3.18.3.2 NumberLinePlot with Exponential
3.18.3.3 Detect numbers on the image
3.18.3.1 How to Inset a legend in GeoGraphics with Scaled LegendMarkerSize?

http://mathematica.stackexchange.com/questions/130060/how-to-inset-a-legend-in-geographics-with-scaled-legendmarkersize

 
I have a GeoGraphics where I am using Scaled in PointSize to include size information.  I want to Inset a PointLegend that describes the sizes of the points. 
 
Outside of GeoGraphics I can do this by  ...
 
- asked by Edmund 2votes
3.18.3.2 NumberLinePlot with Exponential

http://mathematica.stackexchange.com/questions/129938/numberlineplot-with-exponential

 
I have: 
 
Clear[f, x] 
f[x_] = Exp[1/x] 
 
 
Now, the question is "where is the derivative negative?" I managed to get the Reduce command to work by adding Reals. 
 
Reduce[f'[x] < 0, x, Reals] 
 
 
Which  ...
                                                                                  

                                                                                  
 
- asked by David 3votes
3.18.3.3 Detect numbers on the image

http://mathematica.stackexchange.com/questions/129821/detect-numbers-on-the-image

 
How to detect numbers on the following image 
 
 
 
I tried: 
 
img=Import["http://imgur.com/TDbn7sB.png"] 
 
set = ImagePartition[img, Scaled[{1/20, 1/5}]] // Flatten 
 
 
 
 
then I tried Classify[] but it  ...
 
- asked by vito 3votes