Every tessellates.
a. decagon
b. polygon
c. triangle
d. hexagon

The answer is letter B. Every polygon tesselates. Since the word 'tesselate' here means a pattern of shapes put together without any gaps, then I think every polygon tesselates if they are put side by side together in varying amounts and leave absolutely no gaps or spaces between each other.

It is a percent with money involved too divide and you should have your answer