Expand using algebric
identity
1) (2xy+5y)2

Which quotation from the declare ration of independence shows the idea of the social contract

Which of the following was probably the most difficult challenge facing construction of the railroad?

What is the significance of the battle of saratoga? a. the defeat at saratoga allowed the british to invade new england by land. b. after the defeat at saratoga france refuse to sign a treaty with the united states. c. the british won a decisive victory at saratoga. d. after the victory at saratoga france gave open support to the united states including arms money and ships.