−6(x+7)=−4x−2minus, 6, left parenthesis, x, plus, 7, right parenthesis, equals, minus, 4, x, minus, 2 (Choice A)
A
No solutions

(Choice B)
B
Exactly one solution

(Choice C)
C
Infinitely many solutions

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