-6x – 2y-z=-17
5x + y - 6z = 19
-4x - 6y-6z =-20
solve for x, y, and z

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.

Pls the last one and it has to be like number 6