The school librarian had $100 to spend on some books for the school. She wants to order many copies of the same book so an entire classroom can read the book. Each copy costs $3.95. Shipping for the b

The school librarian had $100 to spend on some books for the school. She wants to order many copies of the same book so an entire classroom can read the book. Each copy costs $3.95. Shipping for the books will be $6.95.

How many copies can the librarian order? Describe how you can use estimation to decide if your answer to part a is reasonable