Ello everyone i need to get these questions right so i can go and have fun this week, so please answer them correctly. <3

Find the area of a square with a side length of 1/4 in.

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.

What are “like terms”? why can we only add like terms?