(Doh)It is only the 3rd day of my geometry class and I am already lost. I can tell this will be a good year!(Thinking)I just barely got a C in Algebra last year and now geometry is CRAZY!! I get so aggravated and I almost cry.(Crying)I was always good in school...until High School. Anyway......I need help with this problem soon!!

Describe a pattern in the sequence of numbers. Predict the next number.

8, 15, 29, 57

I got that when you subtract 29 from 57 you get 28. 29-15=14 and 15-8=7

So that is x by 2 but how do I get that wrote down??

This is what I feel like doing right now.(Headbang)