Which of the following are solutions to the equation below? Check all that apply.

x2 + 6x + 9 = 20

A. X = 2,5-3
B. X = -22/5 +3
C. X = -215-3
O D. X= -1/3 +20
O E. x= 215 +3
O F. X= 13 + 20

The length and a quarter of the width of a rectangle add up to 7 in, while the length and the width add up to 10 in. what are the rectangle's length and width?

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.

Turner's mom measured his room to see how long the wallpaper border needed to be. if two walls are 15 feet long and two walls are 12 feet long, how long should the strip of border be cut?