Answer:
If you add 690 ml of water you will obtain 1.690 liter of 70% alcohol. Of course if you halve the amounts, e.g. 0.5 liter 75% alcohol and 345 ml of water, you will also obtain 45% alcohol solution.
I got it its this answer i used mathpapa for this
The answer is Square pyramid
She reached 6 miles on her 30th day.
