Asap 15 pts write the ratio $12 dollars for 3 tickets as a unit rate.

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 m 17 27 90 63 ** picture is attached

Which expression can be used to determine the slope of the line that passes through the points -6, three and one, -9