Which problem represents the separate, start unknown structure?

A) Maryann had 3 library books before she checked out 2 more. How many did she have all together?
B) Maryann had 5 library books before she returned 2 of them. How many does she have now?
C) Maryann had some nonfiction books and 2 fiction. She now has 8 books. How many did she begin with?
D) Maryann had 9 library books and Jim had 4. How many more did Maryann have than Jim?


Answer: C

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A researcher records the following number of birdcalls made during an experimental session with robins: 7.2 ± 0.6 (M ± SD). Assuming these data are normally distributed, what is the probability that robins made more than nine birdcalls during this experimental session?

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Janelle has multiple limited-English-proficient (LEP) students in her classes. She feels that her French is not quite up to par in relating the content of the course to these students. To respond to these concerns, she should ______.

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