Please explain and need help as soon as possible

What is the arc length when θ =pi over 3 and the radius is 5 cm? (5 points) 5 pi over 3 cm 10 pi over 3 cm 16 pi over 3 cm pi over 3 cm

Ling listed all of the factors of a mystery number: 1,2,4,8,16,32 what is the mystery number?

In the geometric progression –3, 12, −48… what term is 3,072?