Help? I need someone to help me with this. Because i dont understand. Explain it for me please. Thanks xoxo

How do you write something in scientific notation?

I’m how many different ways can she give the four remaining flowers to the rest of the teachers in the afternoon

The half-life of a certain material is 0.002 second. approximately how much of a 14-gram sample will be left after 0.004 second? a. 12 grams b. 3.5 grams c. 0.06 gram d. 7 grams