Please help this last one and I’ll be passing math (last option is 32 feet btw)

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

What term makes it inconsistent y=2x - 4

Ineed with math stuff it involves graphs