 
 <prompt> Tom choro ihe ọmụma ọ bụla. Ọ gbanwe ya n'aka ya super Nintendo maka original NES. Super Nintendo bụla dị $150 ma ụlọ ahịa na-eme ya 80% nke a. Ọ gara $80 ma ọ gara $10 elu na otu asusu nke $30. Kedu ihe NES na-eme ya maka? <response>: He traded in the SNES for 150*.8=$120
Including the money he gave, he spent 120+80=$200
He got 10+30=$40 in change
So the NES cost 200-40=$160

The answer will be 160. 