Select the standard form of the equation of the circle with a center at (1, -6) and passes through (3, 4).

Transportation is the largest single source of air pollution in the united states. air pollution can harm the environment and human health. which technology could offer a solution to this problem? mufflers that reduce noise motors that run on electricity tires that improve gas mileage

The formation of a solid, also known as a is an indication of a chemical change. precipitate particulate particle powder

Which metal exist in liquid state and can be cut with knife ?