In a certain chemical, the ratio of zinc to copper is 3 to 14. A jar of the chemical contains 336 grams of copper. How many grams of zinc does it contain? HELP PL

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.

Find the average speed of a rabbit that runs a distance of 22 m in a time of 1.8 s .

The triangles in the diagram are congruent. if mzf = 40°, mza = 80°, and mzg = 60°, what is mzb?