The question gives you the formula to use, but it's printed wrong.
The 'x' is an exponent after the (1 + r).
All you have to do is take the formula, and write the numbers into it
that are also given.
The key thing to spot is that the forest is <u><em>decreasing</em></u>, so the 'r' is <u>negative</u>,
just as if you had money in a savings account and every year the bank took
6% <u>out</u> of it.
So the formula to use is f(x) = P (1 + r) ^x
P = 2000
r = -0.06
f(x) = 2000 (1 - 0.06)^x
= <em>2000 (0.94)^x</em>
The amount left after 12 years is
2000 (0.94)¹² =
2000 (0.476) =<em> 951.8 square kilometers</em>.
As this is a fraction, we need to find values where the denominator is equal to 0.



So the answer is B.
Answer: 170
Step-by-step explanation:
t r is 90 and 82 and it = 172 just round that and you have 170
You would put 6 in for k and 2 in for c, making it "5*6-20+8", which equals 18. Hope this helps! :)