Help please my brain be hurty

Select the graph of the solution. click until the correct graph appears. |x| = 3

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

Write as a product of two polynomials. 2(3–b)+5(b–3)^2