I really need help A. S.A. P, please I'm giving 50 points

Look at this expression. a3b3c a-3b-3c-1 which of the following is the simplest form of the expression above?

If you are just building your payment history, how many points from a perfect score will you possibly miss?

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