The castle was under siege by the invading army and many feared that the castle would fall under the invaders control. Congress voted to ratify the constitutional amendment. The military unit led an ambush on a supply convoy in the middle of the night hoping to catch them off guard.
Gross income is the total income, from all sources, before taxes.
So it's not relevant what your tax rate is, if you earn 50 000 a year, then this is your gross income.
Congress passed laws to regulatecommerced, established federal courts below the Supreme Court Congress set up agencies departments and offices
This is an example of face-saving behavior.
She did this in order to avoid feeling embarrassed, or to lessen the embarrassing situation which may have happened if she showed that she heard them fighting. By pretending she didn't hear anything, she kept the appearance of a normal situation.