Suppose that your weekly cash expenses are $60. Every time you withdraw money from the automated teller at your bank, you are charged $0.25. Your bank account pays interest of 2% annually.

a.	How often should you withdraw funds from the bank? (Round your answer to 2 decimal places.)
	You should go to the bank about once every

b.	What is the optimal-sized withdrawal? (Round your answer to the nearest whole dollar.)
	Optimal-sized withdrawal

c.	What is your average amount of cash on hand? (Round your answer to the nearest whole dollar.)
	Average amount of cash on hand