I would like someone to work out this question so I can understand how and when to do stuff. Thank you!

What term makes it inconsistent y=2x - 4 ?

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.

Lines a and b are parallel. what is the value of x? -5 -10 -35 -55