Ineed on 4 me as soon as possible and show me the equation

What is the greater volume 72 quarts or 23 gallons

For f(x)=2x+3 and g(x)=x^2- 8 find (f+g) (x)

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