Solve the system of equations by using substitution. Show ALL of your work. y=-2x y= 8x - 10 You can check your final answer by typing the NUMBER ONLY for x and for y into the boxes below.

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.

2x + 1 < 5 solve the following inequality. then place the correct number in the box provided.

The amount cami raised during last year’s charity walk, $45.50, is 7/10 of the amount she raised this year. which equation represents n, the number of dollars she raised this year?