Twelve times the sum of a number and 2 is equal to 36. what is the number

What are the constants in this expression? -10.6+9/10+2/5m-2.4n+3m

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

Need this asap if anyone can i would be very grateful. if you could show workings that would really