How many more queen bee books were sold than jade owl books??

Answer:
30 queen bee books
Step-by-step explanation:
There are 30 more queen bee books than jade owl books. If 1 symbol of a book are equal to 10 books then :
Queen bee books = 6 × 10 = 60
Jade owl books = 3 × 10 = 30
To find out how many more queen bee books from jade owl books we have to subtract the amount of queen bee books from jade owl books.
60 queen bee books - 30 jade owl books = 30 queen bee books
Therefore there are 30 more queen bee books than jade owl books