What is the difference between -6 and 2 /8 and 10 on a coordinate grid

The lengths of nails produced in a factory are normally distributed with a mean of 4.91 centimeters and a standard deviation of 0.05 centimeters. find the two lengths that separate the top 4% and the bottom 4%. these lengths could serve as limits used to identify which nails should be rejected. round your answer to the nearest hundredth, if necessary.

Twice the sum of a number and 4 is equal to three times the difference of the number and 7. find the number.

Sum is 17 and their difference is 3