On saturday morning, you rank your choices for activities in the following order: go to the library, work out at the gym, have breakfast with friends, and sleep late. suppose you decide to go to the library. your opportunity cost

 work out at the gym

Explanation:

                  Opportunity cost may be explained as a situation where a positive loss is made in selecting one alternative from the list of other alternatives.

Here it is given the list of activities in a serial order :

1. go to the library

2. work out at the gym

3. have breakfast with friends

4. sleep late

                  So out of these four options or alternatives, one activity has to be chosen. And we decide to go the library as an activity to be accomplish.

               By doing this we loose a potential gain from the other alternatives by choosing a certain option. That is by going to the library we lost the opportunity of going to the gym and doing exercise which is beneficial for our health.

Thus, the answer is  work out at the gym.

answer(eu) is the correct answer;

since the options are not listed, when you are working on your budget you should also add water, tv, internet, miscellaneous and your 'fun' money for in your budget. when budgeting, you need to allow for fun money, and mis/accidental money so that you stick to the budget and not go crazy because you feel strapped to the budget.