Algebra is new this year. When my problem looks like this: n(10n). I know I have to multiply 10xn, but after that do I add or multliply my answer by n?

Answer 1

Yes, after you take care of the operation within the parentheses, then you take care of the ones outside.

Remember PEMDAS:
http://www.mathsisfun.com/operation-order-pemdas.html