By the time she managed/had managed to open the door, the postman already went/had already gone.

Blank liquids and gases exert a buoyant force on objects placed in them

If a balloon is taken outside on a very cold day, what will occur?

Connie has $660,000 she wants to save. if the fdic insurance limit per depositor, per bank, is $250,000, which of these way is distributing her money between three banks will guarantee that all of her money is insured ?