The average height of 3 boys was 156cm. When a girl joined them, the average height of the 4 children was 153cm. How tall was the girl?

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

Secant be and cf intersect at point d inside a what is the measure of cde

Hurry which expression is equivalent to 3√x^5y?