Tell whether the graphs of the two equations are parallel
(24) y = 8x-3 , 8x + y =3
(25) 2x + y = 5 , -6 + 2x = y
(26) 2x + y = 5 , y = 0.5x - 3
(27) y = -0.6 + 2 , 5y + 3x = 8
(28) 8x + 3y = 9 , 3y - 4 = 8x
(29) 10x + 2y = 7 , 5x - y = 6

Suppose that 3% of all athletes are using the endurance-enhancing hormone epo (you should be able to simply compute the percentage of all athletes that are not using epo). for our purposes, a “positive” test result is one that indicates presence of epo in an athlete’s bloodstream. the probability of a positive result, given the presence of epo is .99. the probability of a negative result, when epo is not present, is .90. what is the probability that a randomly selected athlete tests positive for epo? 0.0297