Which of the following equations have exactly one solution? Choose all answers that apply:

A
2x-31=2x-312x−31=2x−312, x, minus, 31, equals, 2, x, minus, 31

B
2x-31=-2x-312x−31=−2x−312, x, minus, 31, equals, minus, 2, x, minus, 31

(Choice C)
2x+31=2x-312x+31=2x−312, x, plus, 31, equals, 2, x, minus, 31

(Choice D)
2x-2=2x-312x−2=2x−31

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 additional information could be used to prove abc =mqr using sas? check all that apply.

In an improper fraction, is the numerator equal to, less than, or greater than the denominator