Which of the following sets of ordered pairs represents a function? A. {(-2, -5), (-2, -2), (-2, 2), (-2, 5)}
B. {(-5, -2), (-2, -2), (-2, -5), (2, -5)}
C. {(-2, 5), (2, -5), (2, 5), (5, -2)}
D. {(-5, -2), (-2, -2), (2, 5), (5, -2)}

Use a standard normal table to determine the probability. give your answer as a decimal to four decimal places. −1.5< < 1.5)

Aculinary club earns $1360 from a dinner service. they sold 45 adult meals and 80 student meals. an adult meal costs twice as much as a student meal. what is the cost of an adult meal?

Aresearcher believes increased perceived control influence the well-being of residents at a nursing home. to test this , she allowed one group of residents to have control over their daily lies, (where to eat etc) . the other group of 5 residents had these deceisions made by staff. the resident's feelings of well-being were measured on a 10 point scale at the end of a one month trial period. is there a difference on well-being?