What is 3÷1/2 and 1÷1/4 and 1/4÷3 in fraction form​

Will mark brainliest question in the pic.

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

How many lines can be drawn through points j and k? 0 1 2 3