Please help with my Algebra 1-5

6x - 8 = 16 solve the following equation. then place the correct number in the box provided.

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68

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