Answer:
0.756 mg gold
Step-by-step explanation:
Data provided in the question:
Cost of gold = $375/ounce
also,
16 oz = 1 lb and 1 lb = 454 g
thus,
1 oz =

also,
=
= 28.375 g
therefore,
now,
1 g = 1000 mg
therefore,
28.375 g = 28375 mg
and,
$1 = 100 cents
therefore,
$375 = 37500 cents
thus,
cost of 28375 mg gold = 37500 cents
or
37500 cents buys 28375 mg gold
or
1 cent buys
mg gold
or
1 cent buys 0.756 mg gold