 
 <prompt> For one forest wey dey, dem get 4 different kain of trees: oak, pine, spruce, and birch. The total number of trees for the forest na 4000. Spruces dey make up 10% of all the trees, and pines dey make up 13%. The number of oaks dey equal to the number of spruces and pines combined. How many birches dey for the forest? <response>: ```Dey get 10/100 * 4000 = 400 spruces for di forest
Dey get 13/100 * 4000 = 520 pines for di forest.
Dey get di same amount of oaks as pines and spruces combined, so na 400 + 520 = 920 oaks.
So, na 4000 - 920 - 520 - 400 = 2160 birches.

Di answer na 2160.``` 