<human>:  Two sisters go to the movies. Movie tickets are $8 per person. If the sisters brought $25 with them, how much change will they receive after buying the tickets?
<bot>: How much do the tickets cost? ** Movie tickets cost for two people is $8 x 2 = $<<8*2=16>>16.
How much change will the sisters receive? ** The sisters will receive change of $25 - $16 = $<<25-16=9>>9.
#### 9