The vertices of figure A are located at (1, 1), (4, 1), (4, 3). The transformation f(x, y) = (3x, 3y-1) transforms figure A into figure B. Which of the following sets of transformations would transform figure B back into figure A?

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