Pick either 4 and 6 to answer

Will give extra points for correct answers

Which is the focus of a parabola with equation y2=4x

16x^2-16x=5 solve the equation by completing the square

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.