An average drop of blood contains about 1.6 x 10^4 white blood cells. A rare drop of blood contains about 5 x 10^4 white blood c
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Answer:
Step-by-step explanation:
Let's call the numbers "<em>tu</em>", where<em> t</em> is the tens digit and <em>u</em> is the units digit.
We can solve this by the "brute force" method — examining each number to see if it satisfies the conditions.