Ezra made cookies for a bake sale. He made 13 cookies in the shape of a dog and 54 cookies in other shapes. What is the probability that a randomly chosen cookie will be in the shape of a dog?

The measurement of one angle of a right triangle is 34°. what is the measurement of the third angle?

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

Which expression is equivalent to7_/x^2 ÷ 5_/y^3? assume y# 0