1: What are two intergers with different signs that have the sum of -25? 2: what are two integers with the same signs that have a sum of -25?

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A20? -foot ladder is placed against a vertical wall of a? building, with the bottom of the ladder standing on level ground 19 feet from the base of the building. how high up the wall does the ladder? reach?

He that is measured at 220° is a reflex angle. the opposite angle is obtuse. find the measure of obtuse .

Aadc is formed by reflecting aabc across line segment ac, as shown in the figure. if the length of ac is 4 units, the area of aadc is square units.