The provisions of the of the 1783 Treaty of Paris

A. assured that remaining Loyalists would be paid back for any property damage.
B. marked Florida as the southern border of the United States.
C. marked the Mississippi River as the western border of the United States.
D. established the Great Lakes as the northern border of the United States.
E. all of the above.

although the crusades failed to capture jerusalem, they had several major impacts on western europe. they increased the authority of the king: sometimes nobles died in battle without leaving an heir in which case the king got their land. kings passed taxes to pay for the crusades.

the perimeter of a triangle is 69 cm. side a is 5 cm shorter than side b. side c is twice as long as side a. find the length of each side. i need to know how to do it in 2 equations.  

equations:

a = b-5

c = 2a

a + b + c = 69