In microsoft excel, you have data to enter in cell c3. you need a function that looks at c3 and says that if c3 is empty, then display nothing. otherwise, take the data in c3 and multiply it by 4. what formula would you write to achieve this?

Bismuth-210 is an isotope that radioactively decays by about 13% each day, meaning 13% of the remaining bismuth-210 transforms into another atom (polonium-210 in this case) each day. if you begin with 233 mg of bismuth-210, how much remains after 8 days?

What is sin 7x/4 ? i need on this urgent trig

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