âThe perimeter of the inner polygon is shorter than the circumference of the circle, while that of the outer polygon is longer.â âZenodorus studied the area of a figure with a fixed perimeter and the volume of a solid figure with fixed surface.â
Social Security generally defines substantial earnings as a certain dollar amount. In 2017, generally $1,170.00 earnings per month is substantial for non-blind workers and $1,930.00 is substantial work for the blind. These amounts refer to your gross earnings if you are an employee and your net profit if you are self-employed.
Nationally in November 2013, about 57,917,000 people received a monthly retirement, survivors or disability related benefit. Considering all of these people, the average monthly Social Security amount paid, combining all the different Social Security benefits, was $1,164.18. For Social Security retirement benefits, the average worker, based on his or her individual work record, received $1,273 that month.