Literal equations k= ap/2 solve for a

What is the average rate of change for this function for the interval from x=2 to x=4 ?

The weights of broilers (commercially raised chickens) are approximately normally distributed with mean 1387 grams and standard deviation 161 grams. what is the probability that a randomly selected broiler weighs more than 1,425 grams?

Triangle knm is what is true about the sides of knm