What does Q and A mean?
If u know it it's easy points.

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

Giving 30 points away plus brainliest if you answer correctly if you're found to be at fault in your driver license will be canceled within 90 days unless you complete a 12-hour advanced driver improvement course, complete four hours of behind-the-wheel training, and pass the extended driving test. a. a crash that results in an injury b. a crash in a school zone c. two crashes within two years d. three crashes within three years

General ways to reduce the risk of some action include