The product of a number and -8 is eight times the sum of that number and 36. Find the number. A) -8
B) 8
C) -18
D) 18

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