The question is below! Please help! Will mark the brainiest! 25 points!! full answer tho please and no links

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.

Which of the following expressions is equal to 2x^2+8

In the geometric progression –3, 12, −48… what term is 3,072?