What is the interquartile range of this data? 6 8 9 20

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

An angle that measures between 90 and 180° is called a(,

What is r i 4.5+10r=-6.5 with work pls