What is the slope of the line in the graph shown below?

In a certain pentagon, the interior angles are a,b,c,d,e where a,b,c,d,e are integers strictly less than 180. ("strictly less than 180" means they are "less than and not equal to" 180.) if the median of the interior angles is 61 and there is only one mode, then what are the degree measures of all five angles?

What is the total area of the figure?

The radius of the earth is two times the radius of the moon. what fraction of the volume of the earth is the volume of the moon?