Tyler has 18 coins dated 1800 ... this number is 2% of his collection. how many coins does tyler have?

He has 900 coins.

There are multiple ways to get this answer, but the easiest and most logical (in my opinion) way is this:

A percent is out of 100.

We have 2 percent in this problem. So, how would you get 2 to become 100?

Multiply 2 by 50 to get 100.

So, we do the same for the other number.

18 multiplied by 50 is 900.

If you have any questions then feel free to ask.

18/?=2/100 2*9=18 100*9=900

Tyler has 900 coins in his collection.