24xy-xy^3+x^2 find the degree plz

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

Table which ratio is equivalent to 3: 7? 6: 7 3: 21 24: 56 15: 30

If i had 1234 apples and 1 banana what is the total amount