Help me please i am grade 10

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 me with this problem . show your work .

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a, b and c integers and a> 1