y varies jointly with x^3 and z and varies inversely with r^2. What is the effect on y when x is doubled and z is cut in half

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.

One integer is 5 more than another. their product is 104. find the integers

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