please help answer these three individual questions!! if your not willing to do all three then dont take this. please dont waste my questions!! for who ever does it thank you very much you will get an up vote.

7. What are the advantages and disadvantages of zero-based budgeting? 8. How does modified zero-based budgeting differ from zero-based budgeting? 9. What are the advantages and disadvantages of modified zero-based budgeting