Please help!

which ones are functions and not a function

What number must you add to complete the square x^2+12x=16

25 ! the line of best fit is h = 5a + 86. predict the height at age 16.

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