What are the like terms in these?

3+5y-2g+7y

9g+5-2g+8x

Rounded to the nearest tenth, what is the value of x

Does the construction demonstrate how to copy an angle correctly using technology a) yes the distance between points a and f was used to create circle h b) yes the distance between points f and g was used to create circle h c) no the distance between points a and f was used to create circle h d) no the distance between points f and g was used to create circle h

Suppose the equation ||x-a|-b|=2008 has 3 distinct real roots and a not =0. find the value of b.