A large chocolate shake takes 0.8 of a pint of milk. A small shake takes 0.3 the amount of a large. How much milk does a small shake take?

:24% of students in a class are girls. if there are less than 30 students in this class, how many students are there? how many girls are there?

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

Tan198=asin164=? how to solve this? ?