Hello!
Lynne invested 35,000 into an account earning 4% annual interest compounded quarterly she makes no other deposits into the account and does not withdraw any money. What is the balance of Lynne's account in 5years
Data: 
P = 35000 
r = 4% = 0,04 
n = 4 
t = 5 
P' = ? 
I = ? 
We have the following compound interest formula 
 





So the new principal P' after 5 years is approximately $42,706.66. 
Subtracting the original principal from this amount gives the amount of interest received:


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I Hope this helps, greetings ... Dexteright02! =)