15. if p pencils cost 2d dollars, how many
pencils can be bought for c cents?

Explanation:

Start by converting c cents into dollars.

That would be c/100

p pencils cost 2D dollars.

1 pencil costs 2D/p

So 1 pencil costs 2D/p

So for c cents you can buy.

answer:

i havent taken the psat, but i have the sat, make sure to bring some snacks, because youre in there forever, 2 sharp number two pencils, an sat approved calculator, and maybe a jacket.   your phone and any books will be taken up, so don't try to bring them(but they will be given back at the end of the testing).   good luck!   i hope you do well!