What's going on here. Input Output 1 7 12 14 21 4 28 5 35

If m 17 27 90 63 ** picture is attached

Solve 3x-18=2y and 5x-6y=14 by elimination or substitution . show all !

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