Here is the sample test from NJATC. As far as the algebra - I bought an "Algebra for Dummies" workbook at the local bookstore to refresh my memory.
As for your other questions - you should ask the training director at the local JATC. He, or she, will be able to answer any questions you have.
As for your other questions - you should ask the training director at the local JATC. He, or she, will be able to answer any questions you have.