AXYZ was reflected over a vertical line, then dilated by a scale factor of 1/2 , resulting in AX'Y'Z". Which must be
true of the two triangles? Select three options.

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