The shaded region outside the small square but inside the large rectangle models the grass in shannon’s back yard. if the dimensions are given measures in feet, which expression represents the area of the shades region?

Atown recently dismissed 5 employees in order to meet their new budget reductions. the town had 5 employees over 50 years of age and 19 under 50. if the dismissed employees were selected at random, what is the probability that exactly 2 employees were over 50? express your answer as a fraction or a decimal number rounded to four decimal places.