What is 7/8 x 4/5 divided by 7/20

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

Write 5(6x+4)-2(5x-2) in the form a(bx+c) where a, b and c integers and a> 1

Asinusoidal function whose frequency is 1/6pi