Jeff has a cube train that is 22 inches long. he removes 8 inches of cubes from the train. how long is jeff's cube train now?

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

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Me i'm timed right now! there's 4 answer