 
 <prompt> ```Trey dey hang wall decorations for im house. E use nail for two-thirds of dem, thumbtack for two-fifths of the remaining ones, and sticky strip for the rest. E use 15 sticky strips. How many nails Trey use?``` <response>: ```Trey use 15 sticky strips for 3/5 of di remaining decorations afta e use nails, so e use 15 * / 3/5 = 25 thumbtacks and sticky strips
Di 25 decorations na 1/3 of di total decorations, so e use 25 / 1/3 = 75 total decorations
Di nails na 2/3 of di decorations, so Trey use 75 decorations * 2/3 = 50 nails

Di final answer: 50.``` 