A survey is a practice of asking a particular group of people for their thoughts on a product or issue, an Experiment is the practice of doing a comprehensive study on a n issue with the aim of proving it scientifically.
A survey is based on public opinion whereas an experiment is is putting in work to see the outcome, using trials and different ways of experimentation
The answer would be J because if the equation was transferred into a positive then it would be 2y and 5x marking 5x on the bottom and 2y vertically. Hope this helps!!