A car radiator has a 16-quart capacity and is currently filled with a 40% antifreeze solution. How many quarts of this solution should be drained off and replaced with 100% antifreeze so that the radiator is filled with a 50% antifreeze solution? express your answer as a common fraction.

If aaliyah bodyslammed her uncle without damon dash's and he just stood there petrified looking like a down syndrome ringworm, how much diamonds @riaa completely sprinkle covered over her feet before bowing down to congratulate her on owning all rights to the both of their entire careers merged together onto her resumes?