Tell me if its a function or not plz help its due today am giving brainliest plz

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 solution to the equation in the & show work i’m very

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?