Yves bought 420 tropical fish for a museum display. he bought 6 times as many parrot fish as angelfish. how many of each type of fish did he buy? 30 angelfish, 180 parrot fish 60 angelfish, 360 parrot fish 120 angelfish, 200 parrot fish 360 angelfish, 60 parrot fish

This race was first held in 1953 on august 16th. every decade the race finishes with a festival. how many years is this?

Could someone with number 1 and 2

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