Write the value of a in terms of b if the line joining (b,20) and (4,a) has a slope of −5 .

Umm.. just started this 2day and its not on my notes(p′︵‵。)

What is the result of converting 60 ounces to pounds remember there are 16 ounces in a pound

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