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Converting z intervals to x intervals

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Convert each z interval to x interval
a) -2.17<z
b) z<1.28
c) -1.99<z<1.44
d) If the weight is 14 would it be a small animal?
e) If it is large would you say z value for the weight of the fawn will be close to 0, -2, or 3 explain.
What is given is the mean=27.2 kilograms and standard deviation=4.3 kilograms. I attempted to work out a which I know is wrong but this is what I did.
a)-2.17<z
-2.17X4.3<-27.2
-9.331<-27.2+-9.331
z=36.531

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This solution involves converting z intervals into x intervals.

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