I think john is 10 years old hope that helps.
Answer:
Step-by-step explanation:
When you add, multiply or subtract polynomials, the operation results in another polynomial.
When dividing polynomials, the operation may not result in another polynomial. In this case you normally end up with rational expression in the fraction form.
This operation is said not closed.
In our case this is option D.
The Answer Is 14/15 Hope This Helps.
98% Grade was achieved, so 0.98 of the questions were answered correctly.
n = number of problems

Our final answer can't be a decimal, so we round it to: