Find the endpoint of the segment with the endpoint of (-4, 5) and midpoint of (7, -9)

Aubrey read 29 books and eli read 52 books what number is equal to the number of books aubrey read?

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How many liters of peroxide should be added to 12 liters of an 8% peroxide solution so that the resulting solution contains 16% peroxide?   original added new amount of peroxide 0.96 liters x 0.96 + x amount of solution 12 liters x 12 + x 0.18 liter 1.14 liters 1.92 liters 2.10 liters