PLEASE HELP I really need help please heplp

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 are the solutions of the following system? y=-2x^2 y=x-2

Mr. t has been dating his girlfriend for one year nine months and six days how many hours has mr. t been in a relationship