What is the ratio of people who prefer oranges to bananas?

Ineed i don’t get this at all! and you

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

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)