Answer:
Step-by-step explanation:
circumference= pi * diameter
diameter= 2 * radius
circumference= pi *2(5)
c= 10pi
Hi!
You didn't list the options, but I think I know the answer. Let me know if my answer isn't listed! :)
We need to multiply the exponents.3 · -5 = -15
The answer is 
Hope this helps! :)
<span>f(x) = 5(1/5)-x
f(x) = 5(5)x</span>