Marinda exchanges an office building worth $$800,000($basis is $$820,000)$ for a warehouse worth $$850,000.$ As part of the exchange she also transfers $$50,000$ worth of securities which she purchased for $$40,000.$

a$.$ What are Marinda's realized and recognized gains $($losses$)$ on the two assets exchanged?

b$.$ What is Marinda's basis in the warehouse acquired?