sam is playing songs on her mp3 player. She has 5 hip-hop songs, 5 rock songs, and 10 pop songs. If she has the mp3 player play the songs at random without repeating, what is the probability that the first song will be a rock song and the second song will be a hip-hop song?

Which choice represents the sample space ,s for this event

Jacob signs up to work for 2 1/2 hours at the school carnival. if each work shift is 3/4 hour, how many shifts will jacob work? (i just want to double check : |, for anybody that responds! : )

You just purchased two coins at a price of $670 each. because one of the coins is more collectible, you believe that its value will increase at a rate of 7.1 percent per year, while you believe the second coin will only increase at 6.5 percent per year. if you are correct, how much more will the first coin be worth in 15 years?