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Why is it economically necessary for the east germans to build berlin wall

Dominic and stacy each have a stamp collection. dominic has six fewer stamps than three times the number of stamps stacy has. dominic and stacy decide to give all of their stamps to their younger sister, mary. if stacy had s stamps, which expression represents the number of stamps that mary received? a. (3s − 18)(3s − 6) b. 2s − 18 c. 4s − 6 d. 4s − 18

The signing of which document ended the american revolutionary war? a. u.s. constitution b. declaration of independence c. treaty of paris d. treaty of versailles