The lengths of salamanders have a normal distribution with mean 15cm, and standard deviation 2cm. Which of the following intervals should we expect to contain the most salamander lengths?

Suppose that one doll house uses the 1 inch scale, meaning that 1 inch on the doll house corresponds to 1/2 foot for life-sized objects. if the doll house is 108 inches wide, what is the width of the full-sized house that it's modeled after? in inches and feet.

2.5 milligrams is equivalent to how many grams

Can you me find the slope! (30 points)