Please help . Determine the type of triangle that is drawn below. ​

Katlyn made 4 dresses with 7 yards of fabric. how many yards did she use on 1 dress?

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

I’m stuck on this equation, anyone got the answer?