A soil scientist is evaluating nitrogen retention in three soil types: sandy, loam, and clay. Sandy soil retains 12% of applied nitrogen, loam retains 25%, and clay retains 35%. She applies 80 kg of nitrogen per hectare to a 0.6-hectare sandy plot, 0.4-hectare loam, and 0.5-hectare clay. How many total kilograms of nitrogen are retained across all plots? - Veritas Home Health