Do the values in this table represent a proportional relationship? x 2 4 6 8 y 1 2 3 4 Yes, and the constant of proportionality is 12. Yes, and the constant of proportionality is 2. No. I don't know.

Which is an advantage to using nonrenewable resources? a. they can be cheaper. b. they can have a lower impact on the environment. c. they can be used up rapidly. d. they can contribute to global warming.

Two technicians are discussing how to test a car's exhaust by holding a small piece of paper within an inch of the tailpipe mouth. technician a says that if the paper is vibrating due to a "puffing" output from the tailpipe, this signals a smoothly running engine. technician b says that if the paper is being drawn toward the tailpipe, this could indicate burned exhaust valves. who is correct? a. technician b b. both technicians a and b c. technician a d. neither technicians a or b

The tendency to seek out individuals who represent the same level of physical attractiveness as ourselves is explained as