Which branch of government has the power to impeach supreme court justices?

The Legislative branch.

Impeachment is a two-step process involving both houses of Congress.

i believe the answer is: returns on investments, no wages

people who belong in upper class society would most likely get there by obtaining multiple source of income, which a certain percentage of ownership for businesses. since most of them are job creator, they would most likely get their money from profit, not wages.