How would i write 0.489 in exlanded form

Cody was 165cm tall on the first day of school this year, which was 10% taller than he was on the first day of school last year.

Hormones perform important functions within the reproductive system. during puberty, a number of changes occur in the body. which hormone is responsible for the development of these characteristics in the female? estrogen progestin progesterone testosterone

Ahyperbola centered at the origin has a vertex at (-6,0) and a focus at (10,0)