At the end of 2012, which type of facilities held the largest percentage of state prison inmates?

Why is the supremacy clause considered to be the root of federalism?

If the police arrive at larrys office without probable cause or a warrant and demand to search the premises, which amendment protects him from this type of search?

My town doesn't allow solar panels, but i know they are a great source of renewable energy and can save you money. how can i make my town allow solar panels?