How do I determine # of pearls for a bracelet?

[Ann]

Here goes. And if anyone does not know how to get radius from c = 2πr, then remember r = c ÷ 2π.
And 2π is 6.28
2 x 3.14 is 6.28
sorry for all the edits! I kept getting an emoji instead of the number 8.

Beyond impressed - thank you!