Jean has $20 and is going shopping to buy 3 scarves and as many pairs of earrings as possible. how many pairs of earrings can she buy if scarves cost $2.55 each and earrings cost $2.99 a pair? jean can buy at least 4 pairs of earrings. jean can buy more than 4 pairs of earrings. jean can buy less than 4 pairs of earrings. jean can buy at most 4 pairs of earrings.

If w = 6 units, x = 3 units, and y = 5 units, what is the surface area of the figure? 168 units2 240 units2 144 units2 96 units2

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

Calculate the missing value. round the answer to on decimal place. start with 70, increase it by 21%, and end up with