How many grams of a 250g sample will remain after 4 half-lives?

¿cuando un niño pequeño tiene un problema de aprendizaje. cuando es gran seguirá con el o terminará aquel problema?

Provide one difference between an incan ruler and a moche ruler in their ruling methods

Want free points and brainliest? answer this correctly and i got you a preventative measure against encountering vehicle malfunctions in the middle of a drive is to a. assess your fitness to drive b. do a quick vehicle pre-check c. clean and wash the vehicle d. deflate and inflate your tires