please help me understand ?

Suppose the risk-free interest rate is 4%.
a.	Having $200 today is equivalent to having what amount in one year?
	Amount today
	Interest rate
	Value in 1 year
b.	Having $200 in one year is equivalent to having what amount today?
	Amount in 1 year
	Interest rate
	Value today
c.	Which would you prefer, $200 today or $200 in one year?
	Does your answer depend on when you need the money? Why or why not?