B the use of atomic bombs against Japan by the United States
You just follow the formula and see what it gets you from there.
The formula itself is literally b(1-r)t.
b= 2700
1 - 4% = .96
t = 5 years from 2015
This is a prediction, so it's exact value is irrelevant as long as it is close to your options, which Option C, 2202, is the best option for this.
I didn't follow the formula, however. I just did 10% of 2700, which is 270, and just multiplied it by 2, to get 20% of 2700 (Which is equal to 4% for five years decrease) and just subtracted the difference, leaving me with 2160, which is closer to 2202 rather than 2035. [Using the formula in the calculator kinda confused me, as it didn't turn out so pretty.]
They flew planes over the blockade and dropped supplies to the needed locations.
Well there is no sufferagettes act but the sufferagettes were made in 1903, that's all that can really help your question since their is no act called "the sufferagettes act", hope I helped in the least bit.