Angelina spent $16 for 12 pieces of candy to take to a meeting she has $16 each chocolate bar cost two dollars and each lollypop cost for one dollar determine how many of each she bought 25 points

Ok lets make the number of chocolate bars Angelina bought be "C", and the amount of lollipops she bought be "L".

We know that she bought 12 items in total, so:
L+C=12        (1)
We also know that chocolate costs two dollars, and lollipops cost one dollar, so if she spent 16 dollars;
2C + 1L = 16       (2)
We can subtract (1) from (2) so that:
(2C + L) - (L + C) = 16 - 12
So C = 4
So she bought 4 chocolate bars.
This also means she bought (12 - 4) lollipops, which is 8.

So Angelina bought 4 chocolate bars and 8 lollipops.

Hope this helped