Which sentence explains the correct first step in the solution of this equation? 4(x−3)=94x-3=9 CLEAR CHECK Add 22 to both sides. Apply the distributive property to get 4x−12=94x-12=9. Apply the distributive property to get 4x−3=94x-3=9. Subtract 99 from both sides. DONT SAY DO PEMDAS I WANT THR ANSWER

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