Will give brainliest !

which of the following equals 1/16 when evaluating f (–2)?

a.
f(x)=2^(x-2)
b.
f(x)=-2^(x-6)
c.
f(x)=-2^(n-2)
d.
f(x)=2^(n-8)

We just started the introduction into circles and i have no idea how to do this.

Which of the following contains a variable?

Jayne is studying urban planning and finds that her town is decreasing in population by 3% each year. the population of her town is changing by a constant rate.true or false?