Caculate the difference between the greatest and least landing values.

Facial shaving brushes are either bulb-shaped or fan-shaped. an experiment is to be conducted to determine whether the lather thickness is the same for both types of shaving brushes. in previous studies, it was determined that shaving brush size (small, medium, large) is associated with lather thickness, but shaving brush type (wolf whiskers, maggard razors, frank shaving, and so on) is not associated with lather thickness. how could the experiment best be conducted? by blocking on shaving brush size by blocking on shaving brush type by blocking on shaving brush shape by blocking on lather thickness without blocking

I’m giving out free points and brainliest to whoever answers this fast and correct : ) if you want to obtain a class e license before you turn 18, you a. be in compliance with school attendance requirements b. have proof of employment c. be a u.s. citizen d. own a motor vehicle

Only people in ap world history can can someone give me a question and a statement to present to the class about chapter 15,16,or17