In a city school, 65% of students have green eyes, 25% have red hair, and 15% have green eyes and red hair. What is the probability (rounded to the nearest whole percent) that a randomly selected student has red hair, given that the student has green eyes?
a) 38%
b) 23%
c) 16%
d) 25%

In the final round of trivia competition, contestants were asked to name as many states that begin with the letter m as they could in 15 seconds. the bar graph shows the number of states the contestants were able to name. how many contestants participated in the final round of the competition?

Amachine part consists of a half sphere and a cylinder, as shown in the figure. the total volume of the part is π cubic inches.

Describe how you can act financially responsible.