Watch help video In a class of students, the following data table summarizes how many students have a brother or a sister, What is the probability that a student chosen randomly from the class has a brother and a sister? as a brother Does not have a brother Has a sister 3 Does not have a sister 5 19

Let r = 3. what is the value of r + 58?

What is the image of c for a 90° counterclockwise rotation about a? (3, 7) (-1, 3) (7, 3)

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212