The half life of a radioactive kind of camium is 14 years. How much will be left after 28 years, if you start with 72 grams of it? Is urgent, if someone knows it and have a explanation it will help, thanks :)

Through non-collinear points there is exactly one plane.

If private savings 'v' = 0.75s and total savings 's' equals $4.20 billion, solve for public and private savings.

Need match the functions with correct transformation. f(x) = -3x f(x) = |x-1|+3 f(x) = √(x+3) 1/2x² f(x) = (x+1)²-3 4|x| 1. compress by a factor of 1/2 2. stretch by a factor of 4 3. shift to the left 3 4. shift to the left 1 5. shift up 3 6. reflection