If enough of the endangered trees were replanted, in order to classify them as threatened instead of endangered, how many total threatened tree species would there be?

This environmental question can be answered simply by adding. If enough of the 235 endangered tree species, that are being replanted, were replanted and they were now classified as threatened, there would be a total of 4,435 threatened tree species (4,200 threatened tree species + 235 replanted endangered tree species = 4,435).