What's my answer? A, B,C or D.

Given f(x) = 17-x^2what is the average rate of change in f(x) over the interval [1, 5]?

What is the distance between the points (2, 5) and (5,9)?

On this question. a hypothermia occurs when a person's body temperature drops below 95 degrees fahrenheit. write and solve an inequality that describes how much lower the body temperature of a person with hypothermia will be than the body temperature of a person with a normal temperature of 98.6 degrees fahrenheit