Answer:
50 books were sold
Step-by-step explanation:
there are 5 books in the Red Crow row, and each book is worth 10 sold.
The answer to your question is 2/7 is 1/2 of 1 3/4.
I am not very good you should probably ask someone else sorry
4000+7000= 11,000 nearest thousands
4281+7028= 11,309 actual number