Question

I have 3 questions. Maths and Science.

Maths question: What is 2y^2 + y^2
Science question: What is the difference between continuous and discontinuous variation?
Science question: Is the length of arm span caused by inherited variation, environmental variation or both. If so why?

Thank you! :)

Answer 1

the answer to the math question is 3y^2
and i'm not that great at science so i'm don't want to try to give you an answer and it be wrong, sorry. hope i helped on the math question though!