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.
You should discuss questions regarding survivors' benefits directly with the Social Security Administration. Disability Benefits In 2010, People on disability can earn up to $1,000 per month ($12,000 per year) for most disabilities, or $1,640 per month ($19,680 per year) if legally blind.