Need help, ASAP. The half-life of Palladium-100 is 4 days. After 12 days, a sample of Palladium-100 has been reduced to a mass of 1 mg. Find an equation of the form =*^ that can be used to model the Palladium-100.

17 in long 1.3 ft wide and 8in high what is the volume

Consider a cube that has sides of length l. now consider putting the largest sphere you can inside this cube without any point on the sphere lying outside of the cube. the volume ratio -volume of the sphere/ volume of the cube is 1. 5.2 × 10−1 2. 3.8 × 10−1 3. 1.9 4. 2.5 × 10−1 5. 3.8

How do you write something in scientific notation?