Atest consists of 20 questions, and students are asked to only answer 15 of them. in how many different ways can they choose 15 questions?

Can't gugys answer the ratio question. this is urgent the plans of a building is drawn toward scale of 1: 1000. kfc the foyer on the plans measures 62mm by 54mm, how large is the foyer in real life?

What is the solution to the equation? k/6.4=8.7 2.3 5.568 15.1 55.68

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