How do you solve this surface area of composite figures question?

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.

Atriangle with all sides of equal length is a/an triangle. a. right b. scalene c. equilateral d. isosceles

If the simple annual interest rate on a loan is 6, what is the interest rate in percentage per month?