Last week, the price of bananas at a grocery store was $0.80 per pound. This week, pears at the same grocery store are on sale at 25% discount.
What is the total price of 5.5 pounds of bananas this week at the grocery
store?*
How do you solve this

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