package of 25 (cards) = $5.25
1) Explain how you can tell that the unit price per card is less than $1.
if the price per card were 1 then the total price would be 25. The price has to be about a fifth of 1
2) Price per unit (card) = total price / number of cards
Price per unit (card) = $5.25/ 5
= 0.21
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Answer
The price per card is 0.21