Present value PV= FV(1/(1+r)^n)
PV = Present Value
FV = Future Value
r= rate
n= number of years
Just plug in the numbers and calculate.
To solve this question, first we need to find out the price of a single donut.
12 donuts = $ 6.00
1 donuts = $6.00 / 12
1 donuts = $ 0.50
After that, we just need to multiply the price for a single donut with the required amount (9), which will be:
9 x $ 0.50 = $ 4.50 . . . . for 9 donuts
Because MP3 players cost less to make, if demand does not change, there will be more profit. This is because there would be the same amount demand and less money being made into making the product, meaning less expense, which means a bigger profit.