Can someone answer this for me just tell me what to pick

Thompson and thompson is a steel bolts manufacturing company. their current steel bolts have a mean diameter of 127 millimeters, and a variance of 36. if a random sample of 35 steel bolts is selected, what is the probability that the sample mean would differ from the population mean by greater than 0.5 millimeters? round your answer to four decimal places.

Segment wx is shown explain how you would construct a perpendicular bisector of wx using a compass and a straightedge

What is perpendicular to y=-1/2x+11