human
Mr. Sean has a veterinary clinic where he charges clients $60 to treat a dog and $40 to care for a cat. If Khalil took 20 dogs and 60 cats to the clinic for treatment, how much money did he pay Mr. Sean?
assistant
How much did Mr. Sean charge Khalil for treating his dogs? ** To treat his 20 dogs, Mr. Sean charged Khalil 20*$60 = $<<20*60=1200>>1200
How much did Mr. Sean charge Khalil for treating his cats? ** Khalil also paid $40*60 = $<<40*60=2400>>2400 to Mr. Sean to treat his cats.
How much money did Khalil pay Mr. Sean? ** Altogether, Khalil paid Mr. Sean $2400+$1200 = $<<2400+1200=3600>>3600 to treat his pets.
#### 3600