Please put the letters in the correct order. I think you start with a. So far I got AIDHBGE. I need the 9 letter order sequence.

Suppose a laboratory has a 30 g sample of polonium-210. the half-life of polonium-210 is about 138 days how many half-lives of polonium-210 occur in 1104 days? how much polonium is in the sample 1104 days later? 9; 0.06 g 8; 0.12 g 8; 2,070 g

Simplify this expression. 8x 16(x + y)

The random variable x is defined as the number marking the sector in which the arrow lands when the spinner in the diagram is spun once.