Jerry's haircut cost $15 he gave the barber a 10% tip what was the total cost
a: 20.00
b: 16.50
c: 1.50
d: 25.00

What is the range of the data below? .8090100

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

Need solving this 2nd limit problem.