Please help me with my math

Solve the system of equations. y= 2x y= x^2 - 15

Which term applies to agb and dge? a. obtuse b. supplementary c. complementary d. vertical

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.