[ ] 1. How do you find the multiple of 15 by 9 using the multiple of 5 by 9 and 15 by 3

What is the missing constant term in the perfect square that starts with x^2 -20x

You are cycling around europe with friends. you book into a hostel and you ask the owner what the ratio of men to women is currently staying there. there are 24 men and 6 women. what is the ratio of men to women in its simplest form?

Which basic geometric term has no width, no length, and no thickness? line b. point c. angle d. plane