Human: John is performing in 3 plays. Each play has 5 Acts. He wears 2 wigs per act. Each wig cost $5. He drops one of the plays and sells all of the wigs for that play for $4. How much money did he spend? Assistant: 
How many wigs did John use? ** He used 5*2=<<5*2=10>>10 wigs per play
How many wigs did John use? ** So in total, he used 10*3=<<10*3=30>>30 wigs
How much did the wigs cost? ** They cost 30*5=$<<30*5=150>>150
How much money did John get back? ** He gets back 10*4=$<<10*4=40>>40 from selling the wigs
How much money did John spend? ** So he spent 150-40=$<<150-40=110>>110
#### 110