One year ago Trevor invested a total of

$1,600
in three separate accounts. One account pays

2%
annual interest, another pays

4%
, and the final account pays

7%
annual interest. He has five times as much invested at

7%
as he does at

2%
. Trevor made a total of

$90
in interest in one year. How many dollars did Trevor invest in the account that pays

4%
interest?
Trevor invested dollars into that account.