The unit price is the price per unit of measure.
For example: Suppose a 3-pack of marbles cost $7.00 and we need to find the unit price.
To find the unit price,
divide the total cost by the number of marbles.
7.00 ÷ 3 = 2.33
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The correct answer is
The smallest number is the one that comes first while counting.
To arrange the given numbers in order from smallest to greatest, find the smallest number among all the given numbers.
21 is the smallest number.