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.
Monthly SSDI Benefits. In contrast, the monthly benefit for a Social Security disability recipient depends on prior earnings: how much and how long you worked and paid into the Social Security system. The most you can receive in 2017 is $2,687, but the average monthly payment is $1,171. Unlike SSI, the SSA won't count any income against you to lower your SSDI benefit.