Answer: The zeroes of this function are x = 0 (which has a multiplicity of 1) and x = -3 (which has a multiplicity of 2) The graph of this function will be attached. Lastly, (-1, -4) is the local minima and (-3, 0) is the local maxima. I hope this has helped :)
There are a couple of different approaches you can use for this. Here's one.
1. Determine how many digits repeat. (There is just one repeating digit.)
2. Call your number x. Multiply x by 10 to the power of the number of digits found in step 1.
3. Subtract the original number, then solve for x.
_____
If you recognize that 0.333... (repeating) is 1/3, then you know that 0.0333... (repeating) is 1/10×1/3 = 1/30. Add that to 0.8 = 4/5 and you get
... 4/5 + 1/30 = 24/30 + 1/30 = 25/30 = 5/6