What is the factor of 16^2-81

1. are the triangles similar and if so why? what is the value of x? show your work.

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

What is the value of the expression below? 148+(-6)| + |– 35= 7|