What is the number of Total Receivables, Inventory, Depreciation, Amortization, & Depletion, and The property, Plant, & Equipment meaning?

• Did it go up or down over time?
• What does this trend potentially mean?
• Is this company performing better with respect to this item in the past?
• Is this company performing better than its competitors with respect to this line item?
• Is there any connection between receivables and inventory?
• Is there any connection between PPE and depreciation?

Toll Brother Total Receivables Total Inventory Depreciation, Property, Plant, Amortization, & | & Equipment Depletion 2018 96.9 7,598.2 25.3 193.3 2017 99.3 7,281.5 25.4 189.5 2016 85.6 7,354.0 23.1 169.6 2015 78.6 6,997.5 23.6 136.8 23.0 143.0 2014 233.1 6,490.3 ** Charts are represented in millions**