9. Use figures to express exact or approximate amounts of money.

$7	about $1500	over $5,000,000 a year	$13.50
nearly $50,000	a $50 bill	a $5,000,000-a-year account	$350 worth

10. An isolated, noemphatic reference to money may be spelled out.

two hundred dollars	a half dollar	nearly a thousand dollars	half a million dollars
a twenty dollar bill	five thousand dollar's worth	a million-dollar beach house