How is the formula for the circumference of a circle derived

5x + 2 = 12 solve the following equation. then place the correct number in the box provided.

Suppose that an airline uses a seat width of 16.516.5 in. assume men have hip breadths that are normally distributed with a mean of 14.414.4 in. and a standard deviation of 0.90.9 in. complete parts (a) through (c) below. (a) find the probability that if an individual man is randomly selected, his hip breadth will be greater than 16.516.5 in. the probability is nothing. (round to four decimal places as needed.)

What is not true about kl and mn? what is mn? (show your work)