What is the highest common factor of 8,16 and 20

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

18 16 11 45 33 11 33 14 18 11 what is the mode for this data set

What is the point slope form of a line with slope -5 that contains point (2,-1)