human
Marcel bought a pen for $4, and a briefcase for five times the price. How much did Marcel pay for both items?
assistant
How much did the briefcase cost? ** The cost of the briefcase was 5 * 4 = $<<5*4=20>>20.
How much did Marcel pay for both items? ** So for both items Marcel paid 4 + 20 = $<<4+20=24>>24.
#### 24