Answer:
60.27%
Step-by-step explanation:
Purchasing price is $100,000
Benefit per year is $ 16,273
Benefit after 10 years = $16,273*10 = $160,273
Returns in 10 years = $160,273-$100,000 = $60,273
Rate of return = 60,273/100,000 * 100%
=60.27%
-68
X/17=-4
X=-68
So the answer is -68
an = 63(-1/3)^(n-1)
This is a geometric sequence with first term 63 and common ratio -1/3.
The equation for the nth term is
an = 63(-1/3)^(n-1).