$1.$ Nick orders $50$ cases of mezcal from a Mexican distributor at a price of $$90$ per case.

$2.$ A U$.$S$.$ company sells $300$ spark plugs to a Korean company at $$5\mathrm{.}00$ per spark plug.

$3.$ Tim, a U$.$S$.$ citizen, pays $$1,500$ for a computer he orders from Honeycrisp $($a U$.$S$.$ company$).$