Which set of ordered pairs is not a function? a. {(1, 7), (2, 7), (3, 7), (4, 7)}
b. {(–2, 1), (0, 4), (2, 9), (4, 16)}
c. {(1, 0), (3, 2), (5, 4), (7, 2)}
d. {(3, 4), (6, 8), (9, 5), (3, 3)}

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

For what values of the variable x is the expression square root of 7x+14+ square root of 7-x a real number?

52 cm radius = diameter = area = circumference = circumfer