 
 <prompt> Vincent's bookstore an samar da littattafai na farko. Littattafai masu inganci na farko suna da kyauta a cikin littattafai. Idan ya samu littattafai na farko, kuma ya samu littattafai takwas $4 kowane, kuma ya samu littattafai biyu na farko kowane rana, yaya za ya samu kudi bayan rana biyar? <response>: ```Vincent ya samu $4 x 5= $20 daga binciken 5 littattafai na fantasy a kowace rana.
Kudin littattafan shi ne $4/2 = $2 kowace.
Ya samu $2 x 8= $16 kowace rana daga binciken 8 littattafai.
Don haka kudin kuwa ya samu kowace rana shi ne $16 + $20= $36.
Saboda haka, za'a samu $36 x 5= $180 bayan rana biyu.

Sami kalmar bada so: 180.``` 