Answer:
C. [tex]12.80\:dollars[/tex].
Step-by-step explanation:
It was given that,
"Ahmad bought 5 ounces of salad greens for $4.00".
But it was given that, (1 pound = 16 ounces)
We need to convert 5 ounces to pounds.
If 1 pound = 16 ounces, then
[tex]1\:ounce=\frac{1}{16}\:pounds[/tex]
This implies that, 5 ounces
[tex]5\times 1\:ounce=5\times \frac{1}{16}\:pounds[/tex]
[tex]\Rightarrow 5\:ounces=\frac{5}{16}\:pounds[/tex]
The unit rate per pound is
[tex]=4\:dollars \div \frac{5}{16} \:pounds[/tex].
We multiply by the reciprocal of the second fraction to get,
[tex]=4\times \frac{16}{5}[/tex].
[tex]=\frac{64}{5}[/tex]
[tex]=12.80\:dollars[/tex].
