Which sets of ordered pairs represent functions?

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 the value of x in the equation 1.5x+4-3=4.5(x-2)?

Which of the following represents the factorization of the trinomial below? x^2+7x-30