 
 <prompt> Mark chọrọ ike ịkpa ya 20% n'akụkọ $200. Ọ bụghị ike ya nwere ike ịzụrụ $10, Mark ga-ama ihe gbanwere ya? <response>: ```Nọ nke ọzọ iji cheta aka nkesa tip: 20% * $200 = $40
Mepụta aka onye nwoke: $40 - $10 = $30

Nke aha: 30.``` 