How many balloons would it take to make Jenna Marbles fly?

After doing the last Calculate This! video, I started wondering about the video Jenna Marbles did on making Marbles fly. I wondered how many balloons would it take to make Jenna Marbles fly?
Sources:
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Jenna's video on making Marbles fly:
www.youtube.com/watch?v=2AprNKQYx30
CDC average weight page:
www.cdc.gov/nchs/fastats/body-measurements.htm
The Ham group's Helium page:
www.chem.hawaii.edu/uham/lift.html
The Ham Group's main page:
www.chem.hawaii.edu/uham/index.html
Balloon time's helium content:
www.balloontime.com/contact-us/faqs/
Party City's ballons page I used:
www.partycity.com/category/balloons/helium+tanks.do
Party City's Helium tanks:
www.partycity.com/category/balloons/helium+tanks.do
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Intro Music:
Do It Right - Jingle Punks
Youtube Audio Library says Attribution isn't required, but here, there it is.
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Category :

#how#balloons#jenna#marbles#fly