What type of planning do many enterprises participate in that addresses a future event or circumstance that might possibly occur but cannot be predicted with any certainty?

Contingency plan

Explanation:

Contingency plan - it is that type of plan that is likely to be execute in future if predicted event in upcoming future likely to be affected due to some mean. it can be taken as alternative event that cover up the error that would be happen in predicted event or it can be taken as Plan B of main  event.

The main motives behind this plan is to fulfill the daily operation when sudden error happen in normal routine or event.

what is the tax base for the sales tax?

it should be (usually ) 6%

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