What is the inequality graph of y<1/2x+1

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.

Solve: 3x+y=6 4x-2y=18 show all work !

Can someone me with these two circle theorem questions asap?