Which of the following is true about the southern manifesto? A. it was written in 1845 before the civil war
B. it argued in favor of national government power
C. the tenth amendment was basically rendered useless
D. southern officials declared that thier states were no bound by scotus rulings on segregation

is it B

Explanation:

officials declared that their states were not bound by Supreme Court decisions outlawing racial segregation. ... The Court has limited the power of the national government over the state governments.

although world war i began in 1914, the united states did not join the war until 1917. the additional firepower, resources, and soldiers of the u.s. to tip the balance of the war in favor of the allies. remaining neutral. when war broke out in 1914, the united states had a policy of neutrality.

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