Twice a number subtracted from four times a number, added to 15.

Simplify (a/b - b/a) times (a - a^2/a+b) a - a^2/a=b is a mixed number

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

In the diagram below? p is circumscribed about quadrilateral abcd. what is the value of x