Answer:
336 dollars
Explanation:
Set up a proportion. Because you know that three pairs of pants costs sixteen dollars, you can put three over sixteen because they are both the same part of the equation, the same part being that they are pairs of pants. Then you set up another proportion, sixty three over x, because you do not know how much sixteen pairs of pants costs. It should look like this. Then you cross multiply and divide.
3 63
--- = ----
16 x
16 times 63 = 1008
1008/3 = 336
Answer: $336