I think the answer is right triangles sorry its it wrong
Answer:
the amswer is 5 hope this helps you
How many semiannual periods are there in 20 years... 20×2 = 40
FW = PW(1+i)^N
FW = $3500(1+0.03)^40
solve for FW
(sorry no calculator on me)
Answer: The required exponential model is 
Step-by-step explanation:
Since we have given that
Initial cases = 1804
Rate of growth = 4%
Since it is increasing exponentially,
So, it becomes,

Here, a = 1804
b = 
So, it becomes,

Hence, the required exponential model is 