The slave trade played a major role in helping Europeans take control of much of Africa in the 1800s, since this allowed them to do business with local slave dealers and form alliances that kept them safe.
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!
Can u simplify this question