Answer:
$1.66 per pound of potatoes.
Step-by-step explanation:
I think you can just ignore the part at the beginning, this is probably a multi-part question.
unit price is just amount/cost so all you need to do is substitute that.
7/4.20 = 1.66$ per Pound
Good luck with your schoolwork/homework!
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Sorry in advance for bad explanations or wrong answers.