Question

WILL GIVE BRAINLIEST!

Sodium-24 has a hourly decay rate of about 5%.

How many grams of a 900 g sample will remain after 90 hours?

Round the answer to two decimal places.


A. 7.03 g

B. 7.50 g

C. 8.90 g

D. 28.13 g

Answer 1

D.
or divide 900 by 20 and see the closest