You have 400 mg of a radioisotope with a half-life of 5 minutes. How much will be left after 30 minutes? A 6.25mg

B 12.5 mg

C 100 mg

D 50 mg

Do you want free brainliest & free 15 points? answer this correctly and you shall receive : ) the ideal body position for your legs after you've adjusted your seat is with your knee a. is fully tucked in when pressing the pedals b. is slightly crooked when pressing the pedals c. is fully extended when pressing the pedals d. is pressing directly on the pedals

Which is a type of tectonic plate boundary?

When the blood leaves the atria (upper chambers) where does it flow to? a. aorta b. lungs c. ventricles d. rest of the body