The Italian Leonardo da Vinci believed that all known colors could be created using ________ primary colors

What kind of speech are you giving if you are persuading a room full of smokers to quit smoking?

A. speech to reinforce or stimulate B. speech to convince C. speech to actuate D. speech of tribute

The concept of ____________ considers how workers can exert counterpressure on the exercise of power and control.  

Fill in the blank(s) with the appropriate word(s).