Please help

Are the two triangles similar?

Subtract 8 1/6 - 4 5/6 . simplify the answer and write as a mixed number.

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

2. explain in words how you plot the point (4, −2) in a rectangular coordinate system.