PLZ HELP 20 points A linear function has a rate of change of -2 how much does y change for x-values increasing by 3

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.

The last time i bought this product , it cost $20.00 but it looks like it cost 29. 60 today? what is the increase

What are the solutions to the following equation? |m| = 8.5 the value of m is equal to 8.5 and because each distance from zero is 8.5.