Please answer thank you It’s a graph so please show work on a graph

(hurry! ) which expression is equivalent to the following complex fraction?

Astandard american eskimo dog has a mean weight of 30 pounds with a standard deviation of 2 pounds. assuming the weights of standard eskimo dogs are normally distributed, what range of weights would 99.7% of the dogs have? approximately 26–34 pounds approximately 24–36 pounds approximately 28–32 pounds approximately 29–31 pounds

Can someone check if i did this right since i really want to make sure it’s correct. if you do you so much