Answer: d < $9
which means that he has less than 9 dollars to spend on a binder.
Explanation:
Total money = $35
Total amount in pencils and notebooks > $16
Then he has left d < $35 - $16 = $9
the amount of money he can use to spend on a binder is given by
d < $9
which means that he has less than 9 dollars to spend on a binder.