Mario was visiting the carnival when he noticed a few number relationships. He made them into brainteasers for you.

1. If three tenths of the visitors were adults and there were $100$ visitors, how many visitors were adults?

   Hint (a):

   

   Hint 2 (a):

   If the shaded circles represent the fraction of adults, how many adults were present at the carnival?

   More Help (a):

   Each circle is representative of $10$ visitors.

   Answer (a):

   There were $30$ adults at the carnival.

2. Five eighths of the prizes at the Giant Spin were dolls. If there were $64$ prizes, how many prizes were not dolls?

   Hint (b):

   

   Hint 2 (b):

   If the shaded boxes represent the fraction of prizes that were dolls, what fraction of the prizes were not dolls?

   More Help (b):

   If there were $64$ total prizes, how many prizes does each square represent?