Select all the equations that are equivalent

Which of the following of the following sets of side lengths could not form a triangle?

Assume that the weights of quarters are normally distributed with a mean of 5.67 g and a standard deviation 0.070 g. a vending machine will only accept coins weighing between 5.48 g and 5.82 g. what percentage of legal quarters will be rejected? round your answer to two decimal places.

Need on this geometry question. explain how you did it.