The Missouri Compromise and the Compromise of 1850 were both meant to
A. stop the spread of slavery in the United States.
B. create a compromise in which new states could be admitted to the Union.
C. allow slavery to move into the Louisiana Territory.

A

Explanation:

hope i got this right im learning the same thing

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

the monroe doctrine is the best known u.s. policy toward the western hemisphere. buried in a routine annual message delivered to congress by president james monroe in december 1823, the doctrine warns european nations that the united states would not tolerate further colonization or puppet monarchs.