Simplify:

sqrt(x^2-4x+4) if x<1

There are 8 movies that you would like to see currently showing in theatres. in how many different ways can you choose a movie to see this saturday and one to see this sunday?

Which is the best estimate of the product of 0.9 x 0.88? 0 0.25 0.5 1

What are linear equations? could'ya explain too me, ? ! and how do you see what graph is a proportional relationship?