The half-life of a radioactive kind of manganese is 21 minutes. If you start with 2,560 grams of it, how much will be left after 84 minutes?​

Hich equation can pair with x + 2y = 5 to create an inconsistent system? 2x + 4y = 3 5x + 2y = 3 6x + 12y = 30 3x + 4y = 8

Look at the example below which shows how the product property of radicals is used to simplify a radical. use the product property of radicals to simplify the following radical.

Suppose a deep sea driver dives from the surface to 248 feet below the surface. he then dives down 10 more feet. use integers yo represent this situation. then find the driver' s present depth