Answer:
Chang get $853.35 for selling the gold.
Step-by-step explanation:
To calculate how much money can Chang get for selling the gold we have to know the conversion between ounces and grams.
We know that 1 ounce is equivalent to 28.3495 grams.
Then, if Chang sold the 21 g that receive from his uncle, the amount of money he gets is:
[tex]M=21\,g\,\cdot\dfrac{1\,oz}{28.3495\,g}\,\cdot \dfrac{\$1,152}{1\,oz}=\dfrac{21*1,152}{28.3495}=\$\,853.35[/tex]
Chang get $853.35 for selling the gold.