How many skimboards and longboards must the shop sell each week to make a profit

Answer this question only if you know the answer! 30 points and

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

Which choice has the correct steps in graphing the solution set to the following inequality? -45_> 20x-5y