In a standard deck cards there are 13 spades , 13clubs, 13 hearts and 13 diamonds the spades and the clubs are black and the hearts and the diamonds are red. if two cards are chosen at random one at a time and replaced after each pick. what is the probability that black card is chosen first and heart is chosen second?

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

If the sales price of a dvd is $20 and the markup is 34%, what is the cost of the dvd?

Which expression is equivalent to 64 - 9x^2?