How many solutions does the system have?
y - 5x = -6
3y - 15x = -12
a) infinitely many solutions
b) no solution
c) two solutions
d) one solution

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.

Which of the following would be a good name for the function that takes the weight of a box and returns the energy needed to lift it?

Anita has a success rate of 80% on free throws in basketball. she wants to know the estimated probability that she can make exactly four of five free throws in her next game. how can she simulate this scenario? categorize each simulation of this scenario as correct or incorrect.