Write a real world problem that can be represented by the following inequality, 15X - 20 ≤ 130 ,and then explain each step to solve it please !!!

Segment xz is bisected by point y. if xy = 12x, and the measure of xz = 18x – 6, solve for x

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.

Which best describes the construction of a triangle if given the segment lengths of 2 cm, 3 cm, and 5 cm? a) unique triangle b) cannot be determined c) triangle not possible d) more than one triangle