The half-life of radium-224 is approximately 3.66 days. Step 2 of 3 : How much of a 5 gram sample of radium-224 would remain after 9 days? Round to three decimal places.

Idon’t understand this.. will someone ? will mark brainliest along with 20 points.

What is the order of magnitude for the number of liters in a large bottle of soda served at a party

Three numbers x, y, and z are in the ratio 2: 7: 8. if 12 is subtracted from y, then three numbers form a geometric sequence (in the order x, y–12, z). find x, y, and z. there are 2 sets.