Barbie Bungee Data Estimates

I think barbies distance for 10 rubber bands would be close to 130 cm and for 20 rubber bands close to 165 cm and for 30 rubber bands close to 200 cm or more. I got these numbers by looking at my lab sheet from today and seeing that if you add 10 and 20 and 30 rubber bands to the 8 we already had these are close to the numbers that came out.