A group of students was asked, "How many hours did you watch television last week?" Here are their responses.
6, 16, 5, 16, 13, 12, 20
Find the mean number of hours for these students.
If necessary, round your answer to the nearest tenth.

Simplify the expression. -2/5(10+15m-20n)

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

Evaluate the function , when d = {9, 15, 30}. r = {5, 7, 12} r = {6, 10, 15} r = {6, 10, 20} r = {5, 12, 20}