I really need help someone pls help

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

Find the cosine function that is represented in the graph.

Mis the midpoint of rq if rm equals 2x + 5 and mq equals 4x - 9 what is the length of rq