Marcus plays basketball 42 hours a week. this is 6 times as many as he plays chess. how hours a week does marcus play chess

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

The price of an item has been reduced by 30%. the original price was $30. what is the price of the item now ?

How many sides does a regular polygon have if each exterior angle measure is 45 degrees explain your answer, i really don't understand this.