Which is NOT a waste that is removed from the body by the excretory system?
A. water
B. salt
C. blood
D. carbon dioxide

Can someone me with the property questions for 12 13 and 14 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

What is r i 4.5+10r=-6.5 with work pls