Which statement cannot be used to prove line EF is parallel to line RS?

Im gonna fail 7th grade selective breeding 1. creates offspring which are genetically identical to the parent 2. is the process of breeding only organisms with desirable traits 3. involves the removal of the nucleus of a cell 4. combines traits from organisms of different species

What is coefficient of the term of degree of degree 5 in the polynomial below

Consider that lines b and c are parallel. what is the value of x? what is the measure of the smaller angle?