From a rope measuring 10 meters in length, two pieces were cut. The first piece cut off. One was 4 3/ 5 meters long. Then another piece 2 3 /10 meters was cut off. Find the length of the remaining rope. help fast

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