Answer:
counterproposals
Explanation:
Instead of trying to reach a compromise that both Desi and Consuela will agree upon, they are just shouting out different options that will only make one of them happy. Whatever Desi says, Consuela will give a counterproposal that suits only her point of view, and vice versa when Consuela gives an option.
Unless both cool down and realize that they are both probably wrong, at least to some extent, they will continue to argue for a long time and no positive outcome will be possible.
Answer
The answer and procedures of the exercise are attached inthe following image.
Explanation
Please consider the data provided by the exercise. If you have any question please write me back. All the exercises are solved in a single sheet with the formulas indications.