Pls answer fast 50 points a researcher surveyed 8 people to see if there is a relationship between years of education and starting salaries. the data points are shown on the graph. which best represents the equation of the trend line shown on the graph? (note that the graph has a break on the x-axis.) a. y = 0.25x + 15 b. y = 0.25x + 17.5 c. y = 1.25x – 10 d. y = 1.25x + 7.5

Which represents the solution set of the inequality 5x-9 < 21? a. x < 12/5 b. x > 12/5 c. x > 6 d. x < 6

What is the interquartile range of this data set? 2, 5, 9, 11, 18, 30, 42, 48, 55, 73, 81

Select the correct answer from each drop-down menu. a system of equations and its solution are given below. system a complete the sentences to explain what steps were followed to obtain the system of equations below. system b to get system b, the equation in system a was replaced by the sum of that equation and times the equation. the solution to system b the same as the solution to system a.]