12.34=13
It should take 13 balloons
Explaination
2 balloons can left 1 ounce there is 0.035274 ounces in a gram so your take 0.035274 times 350 and get 12.3459 and just round and that’s 13 balloons
Hope it’s right!
The British were taxing the tea and being violent towards the colonists so the colonist got mad and dressed as Indians and threw all the tea in the harbor