Two trucks leave a warehouse at the same time. One travels due north at an average speed of 49 miles per hour, and the other travels due south at an average speed of 64 miles per hour. After how many hours will the two trucks be 791 miles apart?

2people are trying different phones to see which one has the better talk time. chatlong has an average of 18 hours with a standard deviation of 2 hours and talk-a-lot has an average of 20 hours with a standard deviation of 3. the two people who tested their phones both got 20 hours of use on their phones. for the z-scores i got 1 for the chatlong company and 0 for talk-a-lot. what is the percentile for each z-score?

Aflower has 26 chromosomes. to create a new flower,how many would a sperm cell have what is called?

Which of the following statements must be true about this diagram? check all that apply. x°, y°, z°, & w°