Proszę o pomoc bo nie umiem : p
ps tylko przykłady c i d
ps2 podajcie też obliczenia

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

Solve for x and y: 217x + 131y = 913; 131x + 217y = 827

Graph the system of equations. {6x−4y=−244x−8y=−32 use the line tool to graph the lines.