Can you pass this Famous People quiz?
Who said, "That's one small step for [a] man, one giant leap for mankind."?
Niel Armstrong
Thomas Jefferson
Elvis Presley
Nikola Tesla
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Erin reads an average of 20 books per year. She read 23, 17, 20, and 19 books in four different years. How many books did Erin read in the 5th year to make it an average of exactly 20.0 per year?