Solve the following problems. Show your complete solution. Round your answers to 2 decimal places in general, add more decimal places if necessary.

1. Cost that are those unaffected by changes in activity level over a feasible range of operations for the capacity or capability available. Include insurance and taxes on facilities, general management and administrative salaries, license fees, and interest costs on borrowed capital. 2. Costs that are difficult to allocate to a specific output or work activity. Normally, they are costs allocated through a selected formula (such as proportional to direct labor hours, direct labor dollars, or direct material dollars) to the outputs or work activities. 3. Costs that are incurred because of the use of limited resources, such that the opportunity to use those resources to monetary advantage in an alternative use is foregone. Thus, it is the cost of the best rejected (i.e., foregone) opportunity and is often hidden or implied. 4.-5. A deposit of P110,000 was made for 31 days. The net interest after deducting 20% withholding tax is P890.36. Find the rate of return annually. 6.-7. Compute for the effective interest rate of 17% compounded semi-annually? 8.-10. A businessman is paying an annuity of P 710 every month at a rate of 12% compounded monthly to be paid at the beginning of each month for a period of 6 years. How much did the businessman borrowed from the bank