(a) Find the value of xif 10, x and 30 are in A. P. (b) If 6,x, y, and 18 are in A. P., find the value of x and y.

it's a optional mathematics Questions please solve him​

Answer this question! 30 points and brainliest!

The table respent two linear functions the equation respented by the first tables is given

The average hourly earnings for a construction worker is projected to be $24.50 in 2012. jason wants to join the construction work force after he graduates in 2012. his friend tells him that average hourly earnings for construction workers will rise by 2% from 2009 to 2012. based on the data below, assuming that the projected hourly earnings are correct, is jason’s friend’s statement accurate? construction industry - average hourly earnings, 2000-2009 a. his friend’s statement is accurate. the average hourly earnings will increase by 2%. b. his friend’s statement is not accurate. the percent increase will be more than 2% c. his friend’s statement is not accurate. the percent increase will be less than 2% d. his friend’s statement is not accurate. the average hourly earnings will decrease