except for the last box, which contained only 40 books. How many books did the library receive

in this delivery?

A.) 50

B.) 450

C.) 490

D.) 500

E.) 540

- Nine boxes contained 50 books

- One box contained 40 books

__Total books__

= 9(50) + 40 {ten boxes contained 50 and one box contained 40}

= 450 + 40 {multiplied}

= 490 {added}

**C.) 490**

*- Algebra House*