 
 <prompt> Michael ya samu wani shan giya ga wani shan giya ga $430 da kofa ga $190. Don haka, idan ya samu wani shan giya na $100, shin ya kamata ya biya wa mai sayarwa? <response>: ```Naira gaba a gaba shi ne $430 + $190 = $620.
Naira da aka bayarwa ga mai sayar bayan da murabba ce shi ne $620 - $100 = $520.

Sami ne 520.``` 