PLEASE HELP 25 POINTS WHAT IS THE ANSWER

Which statement best describes how private industry decides where to spend the money on research and development

Ahypothesis is? close agreement by competent observers of observations of the same phenomena. a guess that has been tested over and over again and always found to be true. an educated guess that has yet to be proven by experiment. the long side of a right triangle. a synthesis of a large collection of information that includes guesses.

An inclined plane wrapped around a metal shaft is a a. lever b. screw c. pulley d. wedge