The segments shown below could form a triangle. A
C
B
7
9
16
A. True
B. False

Simplify the expression 10/11(22z) + (a+5) -1

Can someone explain to me how to do

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