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.
The 2.1 million older adults on Supplemental Security Income (SSI) receive, on average, just just $435 each month. (ssa, 2016) On average, older women received about $4,500 less annually in Social Security benefits in 2014 than older men due to lower lifetime earnings, time taken off for caregiving, occupational segregation into lower wage work, and other issues. Older women of color fare even worse. (SSA, 2015)