Learning about different problem solving strategies and when to use them will give you a good start. Problem solving is a process. Most strategies provide steps that help you identify the problem and choose the best solution. There are two basic types of strategies: algorithmic and heuristic.
It should be 'No vacancies' (plural). Vacant means empty/free. Vacancy is the state of being empty, therefore 'no vacancies' = no empty rooms.
The word 'provision' in the sentence 'There is no provision for  relief of charges. . .' means terms or conditions. In this case  the meaning is that the controlling rules â¦ have no way to pay back  an employer.