Layer Estimates:

Layer: DCTracts2010Points (ID:0)
Count: 179
Extent:

XMin: -8583569.6023
YMin: 4694724.6909
XMax: -8562632.2221
YMax: 4719452.2115
Spatial Reference: 102100 (3857)

Layer: MajorRoads (ID:1)
Count: 1823
Extent:

XMin: -8584585.2022
YMin: 4700066.0882
XMax: -8561940.8203
YMax: 4720577.9376
Spatial Reference: 102100 (3857)

Layer: DCTract2010 (ID:2)
Count: 179
Extent:

XMin: -8584932.5605
YMin: 4691871.4072
XMax: -8561514.717
YMax: 4721034.9998
Spatial Reference: 102100 (3857)

Layer: Assignment3-1.csv (ID:5)
Count: 179

Layer: datatable.csv (ID:6)
Count: 179