I need help with my 5th grade math if you can help it would be great

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

Lisa has three classes that each last 50 minutes. what is the total number of minutes of the three classes

Which statement accurately describes how to perform a 90° clockwise rotation of point a (1,4) around the origin?