Answer:
6600
Step-by-step explanation:
y = 15000( 1.2) ^ (x/3)
Let x = 6 years
y = 15000( 1.2) ^ (6/3)
y = 15000( 1.2) ^ (2)
y = 15000( 1.44)
y =21600
This is the total amount in the account
We want the profit
Subtract the original amount in the account
21600-15000
6600
Answer:

Step-by-step explanation:

Put the second equation so it's in y= form, it should be the same :)
Answer:
By definition, the derivative of f(x) is

Let's use the definition for 

Then, 
51.36 is the answer.
The equation is total=original(1+% in decimal form)