Which teacher exhibited the most variable year to year performance over this 5 year span?

What is a possible solutions of the x> 3?

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

Savannah had 40 iris blooms last year this year she had 15% more iris blooms how many more hours blooms did savannah have this year