A scientist is using an objective lens with 40X magnification on his microscope. If the ocular lens magnifies 10X, what is the total magnification being used to visualize the specimen?

Which of the following is a direct benefit of the use of assembly lines in production a. laws against theft fraud and coercion are needed to protect free choice. b. the government needs to plan efficient outcomes. c. competition among producers by itself cannot ensure a wide range of consumer choices. d. works pressure the government to guarantee minimum wages