Your answer is 3,147,200 water-filled drinking glasses.
The first thing I would do is change the value of 1,600 water-filled drinking glasses to be equivalent to the total that would result from 281 Americans.
To do this, you just want to multiply 1,600 by 281, as the value of 1,600 is from one person, and for 281 people, the 1,600 would happen 281 times.
1,600 * 281 = 449600
Next, since the value of 449,600 is for 281 Americans in one day's time, multiply by 7 to make it equal to one week's time. This is because one week = 7 days, so the 449,600 total would happen 7 times in one week.
449,600 * 7 = 3,147,200
Therefore, your answer is 3,147,200.
Hope this helps!
