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Question:
1212Carole works at a bookstore and a restaurant. In a 28-day period, Carole worked 
of the days at the bookstore and did not work 
of the days. On the remaining days Carole worked at the restaurant. How many days did Carole work at the restaurant during the 28-day period?
A
19
explanation
1212Carole worked of the 28 days at the bookstore, so she worked 7 days at the bookstore 
. She did not work on of the days, which equals 2 days 
. Subtracting these amounts from 28 gives the number of days she worked at the restaurant (28 − 7 − 2 = 19).
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