ANSWER
$0.53
EXPLANATION
The proportion price to ounces of onion - 1 pound is equivalent to 16 ounces - is:
[tex]\frac{5.03}{16}=0.31\text{ dollars per ounce}[/tex]If we need 1.7 oz, the price is:
[tex]1.7\times0.31=0.527\approx0.53[/tex]$0.53 for 1.7 ounces of butter.
