Help please due now.

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.

If a baby uses 15 diapers in 2 days, how many diapers will the baby use in a year?

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.