human
Raul had $87 to spare so he decided to go to the bookshop. Raul bought 8 comics, each of which cost $4. How much money does Raul have left?
assistant
How much money did Raul spend on comics? ** He spent 8 comics × $4/comic = $<<8*4=32>>32 on comics.
How much money does Raul have left? ** Raul has $87 - $32 = $<<87-32=55>>55 left.
#### 55