Walk me through compounding interest continuously.

Principal Amount = P = $500
Interest rate = r = 9% = 0.09
Time in years =  t = 4

Worth after 4 years = A(t)

Using the given formula:



Thus, the worth of the account after 4 years will be $716.66

First we define the varible to use:
 x = represent the number of cookies
 Cameron:
 The amount of cookies he made was:
 x
 Deyonne:
 We can rewrite the amount in different ways:
 x + 0.25x
 1.25x
 Then, the total revenue is:
 0.50 * (x + (x + 0.25x))
 We rewrite:
 0.50 * (x + 1.25x)
 0.50 * (2.25x)
 
 The following expressions represent possible revenue from the sales:
 F. 0.50 (2.25x
 C. 0.50 (x + 1.25x)
 A. 0.50 [x + (x + 0.25x)]