WILL MARK BRAINLIEST

Please help solve problems with common tangents.

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.

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

Simplify 15(x - 4)(x -1)-3(x + 4)(x - 1) with steps