Answer:
APY = 0.04 or 4%
Step-by-step explanation:
Given the annual percentage rate of 3.5% that is compounded quarterly, and a principal of $6,500:
We can use the following formula to solve for the annual percentage yield (APY):

where <em>r</em> = interest rate = 3.5% or 0.035
<em> n</em> = number of compounding periods per year = 4
We can plug in the values into the equation:




APY = 1.03546 - 1
APY = 0.04 or 4%
R=xa+xb, r-xa=xb, b=r-xa/x
63 = 9k
divide by 9 on each side to get k by itself
k = 7