Which expressions are equivalent to x + x+ x+2? Choose 2 answers:
A. 3x+2
B. 3+2x
C. 3(x+2)
D. 2(x+1)+x
F. 5x

Suppose a man is heterozygous for heterochromia, an autosomal dominant disorder which causes two different‑colored eyes in an individual, produced 25‑offspring with his normal‑eyed wife. of their children, 15 were heterochromatic and 10 were‑normal. calculate the chi‑square value for this observation.

What is the length of the segment joining the points at (4,5) and (6,-2) round to the nearest tenth if necessary

Brian, chris, and damien took a math test that had 20 questions. the number of questions brian got right is 14 more than the number of questions chris got right. damien correctly answered 2 less than the number of questions chris answered correctly. if brian and damien have the same score, which statement is true?